Report: FlatOut: Ultimate Carnage Collector's Edition

[LINUX-SAUNA]

os_release:
name: "Ubuntu"
version: "24.04 LTS (Noble Numbat)"
snap_info:
steam_revision: 191
snapd_revision: 21759
lspci:
00:02.0: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0: NVIDIA Corporation GF108M [GeForce GT 540M] (rev a1)
glxinfo:
gpu: Mesa Intel(R) HD Graphics 3000 (SNB GT2)
gpu_version: 3.3 (Core Profile) Mesa 24.0.3 - kisak-mesa PPA
lscpu:
model_name: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
xdg_current_desktop: ubuntu:GNOME
desktop_session: ubuntu

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The game does not launch. Does not launch with any of the Proton versions tried (Experimental, 9.0-2, 8.0-5, 7.0-6 nor 5.0-10). Optimus system laptop; tried to launch (Steam) and game with integrated GPU (Intel) and also the dedicated one (Nvidia).

The game launches and plays right away and well via Steam's regular DEB version (with default Experimental Proton) but not via Steam Snap. So the borkedness is definitely because of the Snap version of Steam (permissions or something else).