![](https://feddit.it/pictrs/image/b0884223-d8a8-4c42-9a18-f1b219e365e9.jpeg)
![](https://lemmy.world/pictrs/image/1f477879-f269-4fc2-805c-3cb0fe552f40.png)
I hope you already solved your problem. I have a 7800xt like you and bought it a week after it launched, I had a distro based on Ubuntu with xanmod kernel and Mesa from oibaf PPA So after I plugged in the GPU, I had to download the latest firmware.git and extract it on the right path, after this I just rebooted and everything was working good.
I see you have already solved this with lutris, but checkout also https://heroicgameslauncher.com/ for epic.