For those unaware, the linux version of TF2 is still 32bit, and runs on ToGL - a DirectX to OpenGL translation layer.
A few days ago, Valve published a TF2 private branch called “x64_linux_test”: https://steamdb.info/changelist/21975149/
Then a few hours ago, Valve update TF2’s “App Config” to include references to x64 Vulkan TF2: https://steamdb.info/changelist/22010846/
Looks like it’s coming soon, in theory should bring some nice performance improvements. But “soon” in Valve Time is… who knows
Edit: the beta is live
and apple don’t support opengl nor vulkan
There is MoltenVK, though, which translates Vulkan to Metal, but Metal doesn’t support all the functions that Vulkan does.
vac need to support it for mac users to play tho