I have used KeePassXC for years. I also use Syncthing which syncs files via my wifi for all devices, including KeePass.
I use Arch, btw, but I don’t consider it the best (yes I do.) I could easily transition to Fedora, for example (I would never do that,) and be completely happy (I would rather continually hit my head with the metal stapler gun on my desk.)
Currently, X11 is not really being developed, just maintained, which is the real issue. In this piece they are questioning whether Wayland was a good choice or not. I am using Wayland, have for some time, and I do acknowledge it is still a work in progress, validating the articles list of ‘issues’ yet to be addressed, but unless you are running a really old system, I am guessing the complications affect a very minimal group of users. There are also workarounds, for example on KDE, the gtk apps don’t adhere to those using the global menu. However, there is a fix to get around it.
In reference to using a completely different solution, isn’t it a little late in the game (16 years in development?) I think we are stuck with Wayland, no?