Hello @octavo, we're tracking issues with games run with Proton in the Proton issue tracker. Also, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/5535#issuecomment-3023805381.
The app switcher would like the steam app name and graphic.
The steam+linux runescape player app switcher would like steam_app_13... to be renamed runescape.
