On Linux vs Android.
My general experience is Android increasingly has applications but so many of them are gated behind paywalls or laden with adverts for what are basic functionality with 5000 free examples on any other operating system save perhaps OSX which is often paid for basic functionality elsewhere. This also says nothing about not having full control in some cases (if you install your own computer you have root user access by default,
You can't really compare ARM Android to a nice consumer focused X86 Linux but the ARM flavours of Linux (which don't require too much in the way of special efforts to appear on the Switch) do tend to have ports of most of the big things.
At the same time the UI of the programs will likely show its heritage from the PC and might not be quite so touchscreen friendly as a lot of Android stuff.
For instance standard desktop/laptop replacement type setup. I want a full featured office suite to do normal documents, maybe some layout work, spreadsheet and slideshows, all local, a nice FTP program because things still use that, a web browser I can install a bunch of plugins on, a full fledged media program or a least one that will do what I tell it, an email client that has nice features rather than just basic send and reply, a few little time waster games like minesweeper and card games, some emulators, some stuff to mess around with graphics to change photo colours/add text/change size and save in another format, same as previous but for video, repeat for audio from my microphone, maybe compile a program or make a quick change to some code in a code editor that can also do a client's website code when I need that, few chat programs, and maybe keep track of my expenses, and if I wanted to do 5 of those things at once... is Android even on a fancy flagship power phone really up for the task and am I likely to get full functionality on those for free with no adverts?