I had the same concern as you when I started, and after roughly two years of use I’ve been impressed with how minimal the maintenance overhead has been.

So far I’ve probably updated the software ~5 times across various releases, each time I’ve updated it been because there was a new feature I wanted rather than needing to pull in fixes (the software has been bug free for me). The update process is well documented and very straight forward if you are using their docker compose setup to run the application