I have a request to any mods/admins/instance owners reading this:
You might get some mileage by putting sticky posts up, ideally in as many communities as possible, warning users about using Meta's app. Make it so every time a Meta user comes and checks us out, they're reminded, over and over, that Meta is spying on them. Repetition gets the message into people's brains!
"Did you know Meta's app watches and times your doomscrolling, and phones home to Meta to tell them which stories caught your eye? It records everything you type, even what you go back and delete, and sends that home to Big Brother. Consider using a spyware-free app, here's where you can get them..."