At this point, I think I would prefer to carry a dumb flip phone for SMS and phone calls, and a smartphone-shaped generic touchscreen linux computer for everything else. It's becoming disturbingly impossible to find the former, and practically impossible (IME) to find the former.

Does anyone here have experience using Ubuntu Touch? That's the closest thing I've seen to "generic touchscreen linux" for mobile phone hardware. I'd love a device that works for multimedia, navigation, web browsing, and a handful of APKs like various chat apps (and really anything can can arbitrarily use the hardware), but it seems like tying a cellular modem to this ends up fucking up the whole dream because of carrier and manufacturer motivations/compensations.