OBS_VKCAPTURE=1 and OBS_GLCAPTURE=1 in the environment zone in the game options, and then tried obs-gamecapture as an argument, with no results. Everything with first Wine-GE, and then with GE-Proton with UMU activated. I also tried to add the game to Steam and then adding env OBS_VKCAPTURE=1 %command%, still nothing. Finally, I added OBS_VKCAPTURE=1 to /etc/environment, works for Steam, not HGL.