This release is ONLY for Diablo 4 and should -not- be needed in the future.
TLDR:
Wine commit:
GloriousEggroll/proton-wine@8c23e2e
breaks D4. Reverting it fixed it. I have no idea if this commit is needed for other games, so I advise NOT using this build for other games.
Must be used with DXVK 2.1 or higher and VKD3D-Proton 2.8 or higher.
I've already updated the DXVK and VKD3D releases on the Lutris side to match this.
I've also updated the Lutris Diablo IV install script to use this build.
Also, I've created a video for a workaround if battle.net gets hung during lutris installation:
https://www.youtube.com/watch?v=PRY56C9Jce0&lc=