Ah yeah, the fun of how that works. I recall that I had previously set up WebDAV to try to simplify my source of truth but I think that was just with the original KeePass app, not KeePassXC. I also wasn’t trying to share passwords among multiple people but I do recall having issues when I was using Dropbox to sync to my phone since I would have to actually make sure Dropbox had updated the copy of the file which required me opening the app at the time.
I would strongly urge you to reconsider this voting strategy. By voting 3rd party, you are saying that you are fine with Donald Trump becoming president again which I believe is many times worse than what you have a problem with the current administration. Is him becoming elected really a better outcome for the overall future? While an important issue to you, you’re exposing a flaw in our election system in that your non-vote is just about the equivalent of a vote for Trump.