Hello @dizcza, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/2069#issuecomment-728337154.
proton 4.11x1 2020-11proton 5.0x1 2020-11proton 5.13x1 2020-11proton4.11x1 2020-11proton5.13x1 2020-11d3d9.dllx1 2020-11
Compatibility Report
System Information
GPU: Intel HD Graphics (Iris 550)
Driver/LLVM version: Intel Neo 20.22.16952
Kernel version: 5.4.0-52-generic
System info: system_report.log
Proton version: 5.13
I confirm:
steam-22300-proton4.11.log
steam-22300-proton5.13.log
Symptoms
The game does not launch (shows Fallout 3 launcher for a moment and quickly disappears) with Proton 5.13 but does launch with Proton 4.11 (see the attached logs). The game does not start with Proton 5.0 either.
I bypassed d3d9.dll, as described here: https://www.youtube.com/watch?v=YYtX_NCDMe0
There is a similar issue, however, it's (1) for Fallout 3 GOTY and (2) outdated Proton version.