When comparing Gentoo Linux vs Deepin OS, the Slant community recommends Gentoo Linux for most people. In the question“What are the best Linux distributions for desktops?” Gentoo Linux is ranked 3rd while Deepin OS is ranked 52nd. The most important reason people chose Gentoo Linux is:
You build the package from a source you can see and read. You decide which features you want to build in and which aren't needed. You can choose build options, optimisation and whatever else fancy stuff you want modified. With a binary distribution this simply isn't possible.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Full control of the software
You build the package from a source you can see and read. You decide which features you want to build in and which aren't needed. You can choose build options, optimisation and whatever else fancy stuff you want modified. With a binary distribution this simply isn't possible.
Pro Portage's emerge is powerful
Portage is a package management system with a huge amount of options and features.
Pro Fully customizable
The usage of advanced features like USE flags makes it more customizable than any binary distribution.
Pro Freedom
You are free to do whatever you want with it. As a result, its configuration reflects your unique taste and personality.
Pro Great for anyone who is serious about learning the intricacies of Linux
It's useful for both beginners and professionals. For the installation, Gentoo offers various types, which are referred to as stages. Basically meaning how in depth you would want to go into the process of installation. For beginners it's useful to choose for a starting distro due to its various stages that can be very time consuming but beneficial as you learn the composition in general of Linux.
Pro Can by optimized to any given CPU by using proper compile flags
Since everything is being built on your PC you can fine-tune the code to make use of your CPU. And all it requires is two lines of string variables in a global config.
Pro Portability
There are many architectures available for Gentoo : i386, x86-64, PowerPC, PowerPC 64, sparc, DEC Alpha, ARM, MIPS, PA-RISC, S390, IA-64, sh, m68k.
Pro Can be officially systemd-free
Gentoo's default init system is OpenRC. Gentoo also officially supports systemd-free Gnome and udev. Users are free to choose any init system they want.
Pro Documentation and community are second to none
Provides a whole handbook to refer to during setup and usage.
Pro A very large collection of software is available
There are more than 19.000 packages available in the official repository. And even more with overlays.
Pro Gentoo does not impose a standard look-and-feel
Pro Superiority and smartness
You get superiority and get called smart daily for going through the processes of punishing yourself to a compile install you also get a cool neofetch logo.
Pro Live USB installation
Installation via a Live USB allows you to go back and fix mistakes from it without having to restart the whole installation process.
Pro Enjoy the simplicity of Deepin's desktop
The desktop interface and apps feature an intuitive and elegant design. Moving around, sharing and searching, etc. has become simply a joyful experience.
Pro Excellent apps
Having Deepin installed also means you have thousands of quality apps to choose from. The apps which come with installation will suit your needs to browse the Internet, listen to music, watch videos, talk with friends, editing documents or simply any task you want to do at home or in your office.
Pro Easy to use
It's very easy to use. You can easily uninstall a program by going to the menu then right-clicking on the preferred app and selecting "Uninstall" option.
Pro Blur and transparent design
Deepin has a blur and transparent design throughout the OS, which makes it one of the most beautiful Linux distros.
Pro Easy to install
Installing Deepin OS is very easy. Even easier than installing Ubuntu!
Pro Supports Flatpak
Deepin OS supports Flatpak. It also has some Flatpak programs installed by default.
Pro Great support for graphics cards
Deepin OS includes a program called "Deepin Graphics Driver Manager" which can easily install a good driver for the graphics card.
Pro Very stable
Since it is based on Debian stable, you will hardly ever get a dependency issue.
Pro Based on Debian
It is based on Debian which is the best Linux distribution for desktops.
Pro Can be made to look like Windows easily
By default, Deepin looks kinda like macOS but it can be made to look like Windows by right-clicking on the dock and changing the mode from "Fashion Mode" to "Efficient Mode".
Pro Best for daily use
Pro Rolling release
It is a rolling release Linux distribution which is quite popular these days.
Pro Great design to the app store
The app store is gorgeous.
Pro Has its own toolkit
It has its own toolkit called "Deepin Tool Kit". And the maintainers themselves use it.
Pro VLC media player works without any issue
In some cases, VLC media player has some problems with Ubuntu or Ubuntu-based Linux distros. That isn't the case with Deepin.
Pro Well-designed in every detail, developers have a professional aproach to the system
Deepin has a sane default set of apps including custom apps of their own design that gives the distro a very consistent look and feel. By working with the community on these tools as well as custom translations there is a great sense of polish when using it that is not often seen when using such a new desktop environment.
Pro Launches programs faster
Programs load and launch faster in Deepin than other Linux distributions. It takes only about 3 seconds to launch Chrome.
Pro Company behind it
The Wuhan Deepin Technology is behind this Linux distribution.
Pro PRO Network Managment
Deepin has the facilities to create VLAN and other configuration like Wifi Hostpot on their GUI.
Pro Quite lightweight
Deepin 15.7 is lighter than Windows 10 and Ubuntu.
Pro Includes a lot of packages in the official repository
The official repository of deepin OS includes over 73,000 packages.
Pro Exciting applications
It has some exciting applications, such as Deepin Graphics Driver Manager which can easily change between free and proprietary drivers without any issue.
Pro Automatically cleans package cache
Deepin automatically cleans package cache. Cleaning package cache is a good thing as it will make the OS much faster and lighter.
Pro Includes both Windows and macOS style interface
Pro Gives warning messages when upgrading packages using apt
Deepin uses their own modified version of apt. When there is a distribution upgrade available and if we try to upgrade by running "sudo apt upgrade", then this modified version of apt gives this warning message, "DDE programs will work abnormally if run this command. Run sudo apt dist-upgrade or sudo apt full-upgrade instead."
Pro Not based on Ubuntu
Some people don't like Ubuntu nor its derivatives.
Pro Seemless transition form Windows to Linux
Easy to install, comes with default packages to typical needs e.g. Chrome, WPS office, System Monitor and a bunch of multimedia utilities. Its easy to install and uninstall applications, it has a great app store and is fast. On same laptop run much faster than Windows 10 did.
Cons
Con Not beginner-friendly
You have to read a lot of instructions to start, even if you are familiar with Linux. Furthermore, as you have to configure the kernel and init system, expect some boot failures at beginning.
Con Since everything must be compiled it takes a lot longer to update
And if you have to update the kernel or some heavy software like Chromium it can takes hours if not more on weaker hardware.
Con No default installer
Installation must be done manually by following instructions in the handbook.

Con Customized package installation can take a long time and cause installation failures
The Gentoo package management system allows you to configure what compilation flags packages should support - i.e. specific processor flag support (SSE, SSE2, etc.), -O1, -O2, -O3 optimization, etc.
If you accept one of the default flags, Gentoo downloads binaries from the server. However, if you decide to optimise, it can and will download all source packages and start compiling allthe programs and libraries on your system. If your chosen flags don't work with a particular library, installation will fail.
Con Somewhat outdated solutions
While being outdated per se is virtually impossible for a rolling-release distro with a large community, a large portion of said community sticks to outdated solutions. For example, Gentoo's primary init system is OpenRC, which is cumbersome and awkward to use and provides little control over the system. While you can just choose systemd, it will require some tinkering. Other examples include stubbornly declaring an initramfs a last resort and an "oh my god 1337 H4XX0RZ surely have nothing better to do than trying for a month to exploit some vulnerability to steal my pony art, I have to fortify so hard my performance and ease of use will suffer" 90s security mentality.
Because of just how much freedom Gentoo provides you with, this usually isn't a big deal though.
Con Too hard
Con Based in China
Con Customization is a bit hidden
GUI is not straight forward for changing GTK+ or QT themes.
Con Deepin store apps not up to date
Con Cannot customize desktop environment
Because the developers have locked down desktop customization is A HUGE detractor against the idea of setting things up how you want.
Con Team doesn't know what to do
Deepin has changed the base 4 times, and the name 3 times. The Desktop Environment also has been changed 4 times.
Con Slow default repos
Download speed for packages from the default repos, is abnormally slow if you don't choose the correct sever.
Con There are issues restarting (on a PC)
Con Pretty laggy
Con Strange development organization
There aren't any sort of improvements over Deepin v15.1. The only changes are icons - they've become better.
Con Very slow installer
Because the servers are in China.
Con Installer lacks features
