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)
Valve also worries about relying on Microsoft. They want people to transition to Linux since it's open and no corporation can go "all games have to go through my store for 30% commission!" The proton fixes that these clients make Valve can also probably utilize to also make and I'm sure the devs for these also contribute to proton so it's a win for everyone.