@Obsessee There's still video issues with cutscenes. I see only color bars or black instead of cutscenes and no audio. This is a known issue reported by @mmbossoni as well as on protondb.
With proton 7.0 (and maluc patch), error message changes on log. It seems like there are missing plugins for playing wmv. libavfilter seems to be in Steam runtime but somehow proton 7 does not detect it? [code]
>  > And launcher does not start. > [steam-21690.log](https://github.com/ValveSoftware/Proton/files/5652...
 And launcher does not start. [steam-21690.log](https://github.com/ValveSoftware/Proton/files/5652335/st...
with proton >=5.13 game cannot install gfwl  [steam-21690.log](https://github.com/ValveSo...
After applying this patch https://steamcommunity.com/sharedfiles/filedetails/?id=1533171339 I'm able to launch without stl, and it also fixes the controller mapping issues I mentioned previously.