Try something conventional, with low maintenance and large adoption, and tailored for the home user, like as Linux Mint for instance.
Take your time there to learn the basics and get acquainted with the new environment.
Cachy is nice, and flashy and cool, but is a rolling release, sometimes it gets broken by some package update (…systemd), and it might need some tweaking to get a temp fix while the repo updates align to stability again. The good thing about cachy is that being based on Arch you’re gonna fully benefit from Arch wiki which is nothing short of double amazing.
Bazzite too is very nice too for gaming setups, but I had a bad experience on the underlying Fedora atomic distro on which I was installing an old printer which required software was not in the repo and which were offered only as .deb packages (made for Debian), which required a socially unacceptable amount of time of tinkering. That means with Bazzite you’re all set if your hw is very streamlined, but if you’re using something peculiar you are on your own.
If you really want the latest updates for gaming, but also benefit from the large adoption of a debian based distro you can also try PikaOS, which is Debian testing release optimized for gaming experience, think about it like a Cachy based on Debian rather than Arch
https://distrowatch.com/table.php?distribution=pikaos
just keep in mind that in comparison to Mint it surely be less tested, and that anyway even with cachy vs mint in gaming tests the advantages of cachy are practically negligible, and the main difference in perf is given by gfx driver quality, in which specific case nvidia linux drivers are historically the black sheep of the story








Have you tried fixing it using flatseal and manually changing the config folder location for the browser in keepassxc? Librewolf too, even as native package, requires that location edit