When comparing ChromeOS Flex vs Peppermint Linux OS, the Slant community recommends Peppermint Linux OS for most people. In the question“What are the best Linux distributions for an old machine?” Peppermint Linux OS is ranked 9th while ChromeOS Flex is ranked 39th. The most important reason people chose Peppermint Linux OS is:
The XFCE Whisker menus and dark theme are well designed. Easy to move the panel to the top and add plank on the bottom.
Specs
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Pros
Pro Lightweight and fast
This is basically just Chrome OS which already runs on Cheap chrome books. It works well for web browsing and file storage on low end computers.
Pro You can try it via bootable USB
Pro Looks great
The XFCE Whisker menus and dark theme are well designed.
Easy to move the panel to the top and add plank on the bottom.
Pro Friendly and helpful forum
Pro Fast and light on resources
RAM consumption is the same as LxLE, but more efficient and because of Whisker Menu and other tweaks that let us feel more like we have a XFCE desktop environment, as keyboard shortcuts, for instance, it looks like we got here the fastest and lightest, globally speaking. Very good on performance. Download Respin 7 (March 2017), install Libreoffice and then compare, for example, opening Libreoffice Writer inside Peppermint 7, Extix 17.04, Lubuntu 16.10, Xubuntu 16.04, Backbox 4.7, Linux Mint 18.1 Xfce an Mate or Linux Lite 3.4 (and others). Finally, you'll find out that after opening a few apps in Peppermint it remains smooth and light. Nemo file explorer on Peppermint is incredibly faster than on Mint Cinnamon; lx terminal is very fast when opening; updating is fast. And after all this, distro keeps working and working very solidly and consistently along the time. And yet the look and feel of the environment is pleasant.
Pro Comes with a variety of helpful tools
Works great with Teamviewer, Synaptic, XNview, KODI, and Pdf-Xchange editor (via playonlinux). Netflix works awesome with Chrome browser. The ICE SSB tool is great for creating web apps that run as if you installed them locally.
The Software Boutique (packaged with The MATE Welcome software Center) recognizes all software and installs it with one click.
Pro It works well "Out Of The Box"
There are enough useful back end packages installed by default to make the system useable for normal use right after the installation of the base distro.
Pro Peppermint 7 is stable
Peppermint 7OS (32 and 64 bit) has been updated to the Respin PPA . Kernel updated to 4.9.24 on 23-April -2017 with no issues and all software still runs great.
Pro Peppermint 10 is Stable
Pro Peppermint9 is stable
Peppermint 9OS (32 and 64 bit) has been updated to the Respin PPA.
Cons
Con Limited hardware support
There is a list online of about 100 or so computers that officially support Cloud Ready, but it can also work on a laptop not on that list, results may vary.
Con Only really meant for web browsing
To use the software, you need to have a Google account and log in. Because it's meant for web browsing and researching, you won't find software like Steam, Office, Adobe Photoshop, Aftereffects, etc; or even a 3rd party browser other than Google Chrome.
Although there are plenty of alternative web browser online, and in the Chrome Web Store, which is still supported by Chrome OS.
Con Since it is based on Lubuntu, the double click speed needs to be slowed down
It's false that Peppermint 7 is tout court based on Lubuntu. Take a look at this: "Peppermint Seven makes use of the Xfwm4 window manager and Xfce bottom panel in the LXDE desktop environment. This is unlike other Linux distributions that use LXDE as the default desktop environment where it is common to use the Openbox window manager and lxpanel." And more: "Peppermint Seven is built on the Ubuntu 16.04 LTS code base and makes use of its package repositories." Contrarily to other Linux distributions, Peppermint creators never said Peppermint 7 is based on Lubuntu, like LXLE. Using LXDE and being based on Ubuntu is very different from being simply based on Lubuntu. In fact, Lubuntu is not faster than Peppermint and has loads of lacks for a nowadays OS experience.