How could I reset all display servers configurations on Bash? / Reset all app settings without uninstalling them?

Welcome to the forum! :wave:

To you, perhaps. However, your description is not at all straightforward. We have no idea what “display servers configurations on Bash” means. Perhaps post your ~/.bashrc using proper formatting?

See also [HowTo] Request support

Not quite.

lsb_release -a | grep Release

:wink:

Either way, the release number is meaningless for an existing install on a rolling release distro. The release numbers are only snapshots for ISO releases.