

I tested with these launch options: STEAMOS=1 STEAMDECK=1 DRI_PRIME=1 mangohud %command%. I keep the Steam Deck options just in case, since this game has anti-cheat and is officially playable on the Deck.
Otherwise, the game ran on integrated, showing it here.
I also looked around a bit to see how’s that variable tested and got this: [output on Pastebin].
I’m fine with the options I have tho! So long as it works for me I’m not complaining, most of the time I’m not looking at them and I can just paste them on a text editor if I need to, thanks for the suggestion anyway.
Hi all, I’ll mark the question as solved, was just playing for over an hour with Steam Overlay on, sometimes multitasking and when playing still taking screenshots and randomly bringing up Overlay, and performance has been consistently on 60FPS (or above it if I set it in-game to 120 but I tweaked the settings recently), there’s rare cases in which the FPS drop to 40~45, normally on fights with a bunch of enemies grouped nearby (on that I get 40), then I think probably on some places I get 45? But I think I’m happy with the main issue having been fixed, and that’s good enough for me.
Now that I have [Secure Boot] disabled I might give another distro a try, maybe Nobara or CachyOS. 🤔 If anyone has any suggestions on the issue above or distros to test, feel free to share, for now I haven’t planned to move so I’ll be here on openSUSE for the time being.
Thanks for your suggestions and help!