Similar to many games, we officially support the Ubuntu distribution. That said, Last Epoch should work on most Linux distributions provided that you are using a 64-bit version.
We’d typically expect the distro you use to play less of a factor than which driver you use and how up-to-date it is. Nevertheless, we highlight Ubuntu as that is what we use for testing.
Using a distro other than Ubuntu doesn’t mean that we won’t try to assist you with issues you encounter – nor does it mean we’ll refuse to accept bug reports from you. All it means is that we may not have the ability to offer detailed step-by-step instructions due to differences between various distros and DEs. We’re a small team with a limited number of computers.