[Linux] Overlay Layers Do not Appear To Work about tempest

[Try]

Hi, @d10sfan !

I've checked your patch and attempt doesn't look correct to me. Vulkan overlays should work without any changes from app.
It possible, that it is some kind of steam issue, possibly overlay is hard disabled for gothic2.
Another thing I want to mention: RenderDoc overlay works for me.

Can you, plase, verify that it is not a steam problem, by running follow script:

export VK_INSTANCE_LAYERS=VK_LAYER_VALVE_steam_overlay_64
./Gothic2Notr -g /path/to/game

?

[d10sfan]

Ah ok, thanks for looking into it.

It does look like steam has the SteamOverlay disabled for it (from looking at the steamdb entry for it). It's strange that it'd affect a "non-steam" game for it, but maybe it's looking for an executable name or app label to determine it.

I suppose this can be closed then since it's probably a steam problem.

[d10sfan]

When I run that script above, the steam overlay does not appear. It just works as normal