When comparing FydeOS vs Linux From Scratch, the Slant community recommends Linux From Scratch for most people. In the question“What are the best Linux distros that don't use systemd?” Linux From Scratch is ranked 19th while FydeOS is ranked 51st. The most important reason people chose Linux From Scratch is:
It is an opportunity for the learner to learn what's behind every piece of program in the system, because you will install and configure all the packages manually. It is also as an advantage to expand your knowledge by searching the possibilities of crafting your unique flavor, for example your own package manager and update schemes.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro On par with Chrome OS
Features are almost on par with Chrome OS
Pro Best for learning the components, libraries and configurations of the whole system one-by-one
It is an opportunity for the learner to learn what's behind every piece of program in the system, because you will install and configure all the packages manually. It is also as an advantage to expand your knowledge by searching the possibilities of crafting your unique flavor, for example your own package manager and update schemes.
Pro For those who wonder what it takes to create an actual Linux distribution
It's a very useful learning experience; showing the user what is required and in what order, to obtain a running Linux system - from the inside out.
Cons
Con Chinese Software
You never know... ...they also replaced the Google cloud with their own(but you can also revert this back (https://forum.xda-developers.com/hardware-hacking/chromebooks/fydeos-google-sync-using-fydeos-account-t3872442).
Con No dualboot
It does not support dualboot on the same harddisk as the OS.
Con Not recommended for Beginners
By creating a Linux system from scratch you will be managing and compiling all of the systems packages by hand, so advanced Linux knowledge is recommended.
Con Takes a while to create the system. Only for those people who would like to create their very own distribution, or just to understand what makes a Linux system tick.
Linux From Scratch, requires the user to download and compile, all the various required system libraries and programs in a ch-rooted environment. This is usually done from within an existing and already running Linux system. This is not really a con, just a note to the new user.