https://github.com/GloriousEggroll/ULWGL
From the github:
WHAT DOES THIS MEAN FOR OTHER LAUNCHERS (lutris/bottles/heroic/legendary,etc):
- everyone can use + contribute to the same protonfixes, no more managing individual install scripts per launcher
 - everyone can run their games through proton just like a native steam game
 - no steam or steam binaries required
 - a unified online database of game fixes (protonfixes)
 


That’s mostly down to DXVK, not Proton in general. You can’t really translate Windows API calls from Windows to … Windows. It wouldn’t change anything. Running games with Vulkan might though, especially with Intel Arc for example.