I haven't seen it mentioned here, so just an FIY: Linux Mint is a "regular" distro, while Bazzite is an immutable distro, meaning the root filesystem is read-only.
That means a lot of the "normal" ways of doing stuff you find online will need to be done differently. For example installing system level packages requires a reboot, to boot in to the new "system image". If something gets booked you can reboot in to an old system image to recover. Regular desktop (Flatpak) apps can be installed without rebooting.
Bazzite is based on Fedora, and very similar to Fedora SilverBlue (immutable version). So if you can't find answers when looking online "how to do X in Bazzite" try instead "how to do X in SilverBlue".
And FYI Linux Mint comes with an easy to use app Timeshift for system level backup and restore (by default it does not backup your documents etc in your HOME folder). Very handy to recover from a borked update or installing something you shouldn't have.
Never heard of them , but sounds like they're gaining traction.
They're also a financial supporter of open street map: https://blog.seznam.cz/en/2024/12/mapy-cz-now-financially-supports-the-openstreetmap-project-helping-to-contribute-to-its-operation-and-development/