What e-reader doesn't allow side-loading books?
This madness is straight out of Right to Read [0].
On Debian, compiling software from source or installing a deb you downloaded via a web browser would be "sideloading".
Freedom of speech should not require living in the woods secluded from society. It is the responsibility of all of us—especially major institutions—to work to preserve that. I can't do it on my own.
Keep an old android phone in a drawer somewhere. Take it out when you do laundry.
> mark student attendance
If your workplace requires you to use an app then your workplace can issue you a phone that you keep at work. I don't use my personal devices for anything work-related and you shouldn't either.
Streaming services which lock you into DRM won over the slightly inconvenient but free thing.
Your time will always better be spent getting government to make the convenient thing more free than trying to move a river by gathering people with buckets.
There are limited choices if you want to keep it in mind.