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.
Never, ever use your personal phone for work stuff.
...but frankly, I am such a geek that it doesn't really matter for me. I have a tiny 11-inch laptop that I usually keep somewhere nearby, or I can VNC into my home desktop computer from my phone.
The thing is that normal people shouldn't have to do this! I say this as someone who does believe that everyone should become more tech-literate and capable with computers. One of the subjects I teach is 5th grade computer science. I don't expect all or even most of my kids to become professional software engineers, but I want them to know enough that they'll be able to make computers work for them instead of the other way around. This is one of the reasons I became a teacher.
I don't expect all of my students to buy and carry around multiple phones in order to protect democracy.
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.
I put PostmarketOS on a spare phone and spent a good bit of time playing with it. It would be painful to try to daily it at this time, and completely unusable for many of the common smartphone use cases.
There are limited choices if you want to keep it in mind.