Well… no… I have been self hosting it for several years over multiple major versions now. Only for Files, Calendar and Deck though. It was a bit hard to set up, but reading the general Apache and PHP documentation helped a lot.

Some Androids have extremely long support times, like the Fairphone. But as a general rule, yes, this is true. Unless you buy a Fairphone, or a model that is supported by Linage and root it, you’re losing software updates after just 2 years, which is insane.