If you want to gradually move away from closed and/or paid software, afaik, the only way is through unlocking the bootloader and uninstalling programs through there.

Alternatively, there is the nuclear option, to replace the whole system, and start from zero with a distro as close as possible from AOSP. Worth noting it also requires unlocking the bootloader.

The more concerning part is the bootloader that keeps being made more and more cumbersome to unlock. Not as easy to install one’s system of choice when you need to beg the device maker to allow access to the part of the system required for that. =/

I mean, slap a proper desktop system and plug some bluetooth devices like a controller or a keyboard and mouse, and you got a makeshift laptop / notebook / whatever-the-current-name-is.

Been using NoPhoneSpam. While it won’t automatically block any numbers, it will cancel incoming calls not matching its filters. Only issue is that, some times, it takes a few seconds for it to recognize not passing calls, but I think it happens when the phone is under a higher load and the system starts lagging a bit, like when downloading bigger files and playing games.

Look for games that are sold DRM free. Those can’t be taken from you by devs or the store after backed up. And usually devs and/or stores that deliberately sell such games also make it clear people can keep their games.

Never saw it before, but going by its description now, it’s the “GNU version of the Firefox browser”, so I would presume you can import everything you could between two Firefox installations, like whole profiles and favorites back up file.