Game gets stuck on pause on fresh steam install

[Dowasnas]

I decided to come back to SH3 again, but this time I decided to use Proton, since protondb says the game runs out of the box and it indeed does (in the sense that it doesn't crash from a page fault), contrary to my last experience where I used wine directly without proton.
Now however it seems that no matter what game I start (career, single mission, naval academy) it gets stuck on the paused screen and doesn't allow me to unpause it. In other threads that mentioned similar problems, it turned out it was a corrupt main.cfg file, but I'm running a fresh install (and have checked for file integrity after I noticed that that problem existed). I attempted to edit the file as suggested by those threads, but that didn't fix it.
This is the current contents of the ~/.steam/debian-installation/steamapps/common/Silent Hunter 3/SH3/data/cfg/main.cfg file:

[SETTINGS]
LoadingMovie=No
VoiceCommand=No
DisableMessages=Yes
EventCamera=Yes
TextsLanguage=0
VoicesLanguage=0
KeybLanguage=0

[TIME COMPRESSION]
TimeStop=0
RealTime=1
LandProximity=4
CriticalDamage=1
CrewEfficiency=1
AirEnemyDetected=1
SoundEffects=2
CharacterAnim=4
EnemyDetected=8
RadioReport=8
Particles=8
PrayState=8
HunterState=32
3DRender=32
Maximum=1024

[VIDEO]
Resolution=1024 x 800
DynamicShadows=No
FullScreen=Yes
Synchronized=No
ParticleDensity=100.000000
TextureResolutionHigh=Yes

[SOUND]
Music=Yes
VolumeGeneral=100
VolumeMusic=100
VolumeFx=100
VolumeSpeech=100

[PLAYER]
Name=Player
Rank=10
Experience=0.000000
Renown=500.000000
NrOff=4
Patrols=0
TorpedoesFired=0
TotalTonnage=100
SubmarineType=1
SubmarineVersion=0
SubmarineName=U-110
ConingTower=3
SubmarineEmblem=Yes
SubmarineEmblemIdx=0
NrPettyOff=12
NrSeamen=26
CurrentYear=0
ShipsSunk=0
M01=1
A01=8
A02=-100
S01=-100
RenownNavalAcademy=0.000000
Careers=0
S02=-100
S03=-100
LastMission=Data/SingleMissions/Test/Test.mis

[Ubi.Com]
ConnectURL=http://gsconnect.ubisoft.com/gsinit.php?user=%s&dp=%s
GameName=SILENTHUNTER3
Version=SH3PC1.0
GamePort=18000
ConfigFile=GSDownload.ini

I remember having that issue before (https://www.subsim.com/radioroom/sho...d.php?t=248620), but it was due to a failed mod install if I'm reading correctly.


I'm using Proton 4.11-13, but also tried experimental.


What am I doing wrong? What additional info can I give?


Edit1:
Ok, seems like the main.cfg under Documents actually didn't have the TIME_COMPRESSION section. Tried copying that section over from the file above, but that didn't fix it. ~/.steam/debian-installation/steamapps/compatdata/15210/pfx/drive_c/users/steamuser/Documents/SH3/data/cfg/:

[SOUND]
VolumeGeneral=100
VolumeMusic=100
VolumeFx=100
VolumeSpeech=100
Music=Yes

[PLAYER]
SubmarineType=1
SubmarineVersion=2
CurrentYear=1942
ConingTower=6
M01=-1
A01=7
A02=7
S01=-100
S02=-100
S03=-100
Name=Player
Rank=10
Experience=500.000000
Renown=500.000000
RenownNavalAcademy=0.000000
NrOff=4
Patrols=0
ShipsSunk=0
TorpedoesFired=0
TotalTonnage=0
SubmarineName=
SubmarineEmblem=No
SubmarineEmblemIdx=-1
NrPettyOff=14
NrSeamen=28
LastMission=data\SingleMissions\English\Malta/Malta.mis
Careers=3

[SETTINGS]
LoadingMovie=No
VoiceCommand=No
EventCamera=No
TextsLanguage=0
VoicesLanguage=0
KeybLanguage=0

[TIME COMPRESSION]
TimeStop=0
RealTime=1
LandProximity=4
CriticalDamage=1
CrewEfficiency=1
AirEnemyDetected=1
SoundEffects=2
CharacterAnim=4
EnemyDetected=8
RadioReport=8
Particles=8
PrayState=8
HunterState=32
3DRender=32
Maximum=1024

[VIDEO]
DynamicShadows=No
FullScreen=No
Synchronized=No
ParticleDensity=100.000000
TextureResolutionHigh=Yes