GloriousEggroll has released a new custom build of their Proton fork based on the latest  Proton release.

This is my build of Proton with the most recent release of vanilla wine, has ffmpeg enabled for faudio by default, and all of Proton's patches ported over to be applied to wine, as well as wine-staging and vkd3d.

All patches:

-Warframe screenshot F6 patch -FFXIV Launcher patch -Mech Warrior online patch
-Assetto Corsa HUD patch -Vulkan child window patch
-sword art online gnutls patch
-d9vk integration
-vkd3d integration
-protonfixes integration
-FAudio with FFMpeg enabled (fixes audio/voices in multiple games)
-All of Valve's wine proton patches. Yes. All of them.
-wine staging patches
-various wine hot fixes for wine functionality that fix regressions per version

Change log:

This is mainly a hotfix + feature release build.

Hotfix:
-Fixed warframe requiring a controller to be plugged in. That's right, you no longer need xboxdrv!

Feature:
-vkd3d branch is latest from codeweavers + DXIL changes by Hans Kristian (who has been doing a lot of vkd3d submissions) + metro exodus commits that both Hans and Doitsujin (creator of dxvk) have been working on together. The previous release had Hans's DXIL changes, this just adds the Metro changes on top of it. With that being said, expect some minor graphical glitches in vkd3d with Metro Exodus

Additions:
-This commit: ValveSoftware#3518 has been merged. This was a previous open PR from Guy1542, but it had a bug that would cause clustertruck and a few others not to launch. The new PR is by joshie (d9vk dev) and works now

-dxvk update to latest git
-faudio updated to latest git

Known issues:
-Just Cause 3 not able to save
-Batman Arkham Knight grappling hook not working

Download Proton 5.1-GE-2 from GitHub