I fail to get the problems with self hosting Immich. I mean, obviously you gotta have a server ready, and at least some knowledge about self hosting and docker. But apart from that, installing Immich was like a breeze. It was actually not more than pasting some lines into a docker-compose, and running it.
Have been using it for about 1.5 years, and I have not a single problem, which is quite incredible for a software that basically has all features that Google Photos has.