My 2 cents about performance, specifically proton. My config is Arch Linux with 4.20 kernel and latest mesa.I've got amd RX 590 gpu and at the start was very disappointed about it's performance with gw2: there were constant heavy framerate drops from 60 to like 15, regardless of settings. I used default settings from Lutris and ArmoredVehicle's package (but before ArmoredVehicle released package with esync+gallium9) It was pretty much unplayable until I tried to launch it via proton. I just installed gw2 via Lutris and select "proton 3.16-beta" as runner (I have Steam alongside with proton enabled so this runner was available without any additional actions). And boom - smooth 50-60 fps on almost ultra settings in 1440p. It drops lower in cities ofc, but in combat it's fine.
I have Lutris 0.4.23. As I can see from lutrise's github proton should be detected since version 0.4.21:https://github.com/lutris/lutris/issues/1056Maybe you've got older Lutris version. I also found this reddit thread:https://www.reddit.com/r/wine_gaming/comments/99fr3y/will_lutris_get_a_proton_wine_runner/Maybe it will be useful.
