It is not trivial to get FOSS Linux onto a write-protected Intel Chromebook, compared to a Windows netbook of yore. It is harder still to get it onto an ARM Chromebook or Android tablet. PostmarketOS is a bit simpler (or at least better documented) but it is not a full Linux distro.

Installing a fully-fledged FOSS OS on low-end general-purpose computing hardware is getting harder. Certainly for the non-techies who have to be part of FOSS if it is to survive.