I’ll start: printers.
I bought an HP in March 2020 when my job went remote and HP bricked it remotely after only 100 pages because I wouldn’t sign up for their subscription program. Ended up trashing a perfectly good printer.
Luckily my library’s close by and I can print there remotely.
I have a TCL/Roku that I’m not inclined to replace yet. I got tired of the “smart” thing fast. Most successful solution to take it offline without being nagged was to change the wifi password and tape over the flashing status light. Disconnecting wifi by settings either forces or dark-patterns you into reconnecting.