Looks like Valve is working on a 64bit and Vulkan upgrade to TF2's linux client

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