Don't really understand the problem but I suppose we should revert that commit for now.
I just found this is also a regression in the game Zeepkist. Same issue, boots to a black screen and that is it. No error window however. Happens on the same devices. I've redownloaded the working and failing builds a few times just to make sure, and it's consistently working/failing. I don't see a real need to file a new bug for that, am I correct in that assumption?
We already reverted the problematic commit.
proton experimentalx1 2022-11
When attempting to boot the game, it throws up an error and a black screen. This happens on Desktop and Steam Deck with SteamOS 3.3 and 3.4. I have a screenshot of the error. As of writing this post, I believe the regression just happened in the past 15 hours.

I believe I bisected it down to the first failing version and the last working version. Those are what is listed with the Proton Experimental Bleeding edges I tested anyway.
Failing DXVK version: dd7ec24269900d2bc017c3cebcd38ef24e3d391f dxvk (v2.0-8-gdd7ec242)
Working DXVK version: 3393c5f4ffd509c7c812ca54853a829910f23f90 dxvk (v2.0-7-g3393c5f4)
Software information
Plants vs Zombies Garden Warfare 2 Deluxe Edition. Playing via Steam.
No settings changed as it cannot boot.
System information
Desktop System. Running Ubuntu 22.04, Gnome.
Steam Deck
additionally
Log files
Attaching logs for the game and for the launcher, both were created. I believe the game is the problem one.
d3d9.log: Game:
GW2.Main_Win64_Retail_d3d9.log
Launcher:
Link2EA_d3d9.log
d3d11.log: Game:
GW2.Main_Win64_Retail_d3d11.log
Launcher:
Link2EA_d3d11.log
dxgi.log: Game:
GW2.Main_Win64_Retail_d3d9.log
Launcher:
Link2EA_dxgi.log