Been daily driving ubports for about 4 years now (OP5T, Noble). The system has its quirks, it sometimes reboots without reason (though its rare, I experience something like that once a month), the videos in web browser sometimes glitch in a weird way and sometimes don't play at all, the camera stops working and needs a reboot. The lack of banking apps and maps with live traffic is irritating (although unav is great, shoutouts to the guy who made it), a problem that could be solved using waydroid but I don't want to use it out of principle. Otherwise it covers all my needs, has working phone, SMS and MMS (I'm from Europe), web browser, matrix and mail clients, TOTP manager (necessary for work), and is totally linux which allows me to do cool things like using pulseaudio sinks to connect my laptop to phone that is connected to speakers and use it as wireless aux (works janky, but it works :) ). It obviously hasn't got many apps compared to the competition, but new ones are continuously being developed by the community. I tried developing an app myself but haven't got the time, fortunately it's much easier now with AI because I remember that one attempt at creating a simple app for enabling some daemon a few years ago was cut short by not-quite clear documentation of the clickable app development system. It needs to be said that I'm certainly not the greatest programmer in the world though :)
If you're a technical guy and you feel like the android and ios are both pretty much destroyed by corporate overlords, then I sincerely invite you to try UBports or SailfishOS (from my research I find these two the most beginner friendly). The experience most certainly will hurt (at the beginning), but the sooner more people start using it, the sooner more people will start contributing to linux on phone and make our systems better. I was nervous that I would not survive without android and its entire app catalog and maps, or that a moment would come at work or in some critical situation that I would need android for some dumb reason and wouldn't be able to do something and spaghetti would fall out of my pockets, but for the last 4 years nothing like that happened. The most painful thing for me are probably the maps, but when I need long distance GPS with live traffic, I'll most certainly be driving with someone, so I just ask the passenger to navigate :) for less important voyages the unav is completely fine, there's also puremaps which I haven't tested.