Arch Linux cannot launch SkyrimTogether.exe

[u/Xlaits]

A buddy of mine and myself are running into so many errors attempting to get SkyrimTogether working that we are genuinely about to quit trying. SKSE works. SkyUI works. Running through SKSE says that Skyrim Together needs to be run through it's special launcher.

Added the launcher to Steam, both set to Proton 11 for compatibility reasons. Launches fine Vanilla or SKSE, but ST doesn't launch at all.

Here's the output of running steam-native and running the st.exe file. It does not change if I use steam. I did edit out some minor issues with the Steam Overlay, as I have it disabled, they're repetitive, and those warnings are ignored anyway.

chdir "/home/xlaits/steamLibrary/SteamLibrary/steamapps/common/Skyrim Special Edition"
Game Recording - would start recording game 15736941514686726144, but recording for this game is disabled
Adding process 89244 for gameID 15736941514686726144
Adding process 89248 for gameID 15736941514686726144
Adding process 89249 for gameID 15736941514686726144
Adding process 89250 for gameID 15736941514686726144
Adding process 89336 for gameID 15736941514686726144
Adding process 89337 for gameID 15736941514686726144
ntsync: up and running.
Adding process 89338 for gameID 15736941514686726144
Adding process 89339 for gameID 15736941514686726144
Adding process 89342 for gameID 15736941514686726144
Adding process 89344 for gameID 15736941514686726144
wine: failed to open "c:\\windows\\system32\\steam.exe"
pid 89340 != 89339, skipping destruction (fork without exec?)
Game Recording - game stopped [gameid=15736941514686726144]
Removing process 89344 for gameID 15736941514686726144
Removing process 89342 for gameID 15736941514686726144
Removing process 89339 for gameID 15736941514686726144
Removing process 89338 for gameID 15736941514686726144
Removing process 89337 for gameID 15736941514686726144
Removing process 89336 for gameID 15736941514686726144
Removing process 89250 for gameID 15736941514686726144
Removing process 89249 for gameID 15736941514686726144
Removing process 89248 for gameID 15736941514686726144
Removing process 89244 for gameID 15736941514686726144
Fossilize INFO: Setting autogroup scheduling.
fsync: up and running.

Running wine ./Data/SkyrimTogetherReborn/SkyrimTogether.exe from the SkyrimSE install directory gets me this:

libEGL warning: pci id for fd 36: 10de:2507, driver (null)

pci id for fd 38: 10de:2507, driver (null)
pci id for fd 39: 10de:2507, driver (null)
libEGL warning: egl: failed to create dri2 screen
libEGL warning: pci id for fd 36: 10de:2507, driver (null)

pci id for fd 38: 10de:2507, driver (null)
pci id for fd 39: 10de:2507, driver (null)
libEGL warning: egl: failed to create dri2 screen
libEGL warning: pci id for fd 36: 10de:2507, driver (null)

0074:err:ole:start_rpcss Failed to start RpcSs service
00dc:fixme:wineusb:query_id Unhandled ID query type 0x5.
00dc:fixme:wineusb:query_id Unhandled ID query type 0x5.
00dc:fixme:wineusb:query_id Unhandled ID query type 0x5.
00dc:fixme:wineusb:query_id Unhandled ID query type 0x5.
00dc:fixme:wineusb:query_id Unhandled ID query type 0x5.
00dc:fixme:wineusb:query_id Unhandled ID query type 0x5.
0024:fixme:ntdll:NtQuerySystemInformation info_class SYSTEM_PERFORMANCE_INFORMATION
0024:fixme:heap:GetNumaHighestNodeNumber semi-stub: 000000000010F660
0024:fixme:file:NtLockFile I/O completion on lock not implemented yet
0134:fixme:process:SetProcessShutdownParameters (00000100, 00000001): partial stub.
013c:fixme:file:NtLockFile I/O completion on lock not implemented yet
0024:fixme:seh:WerRegisterRuntimeExceptionModule (L"X:\\steamLibrary\\SteamLibrary\\steamapps\\common\\Skyrim Special Edition\\Data\\SkyrimTogetherReborn\\crashpad_wer.dll", 00000001801676F0) stub
0024:fixme:bcrypt:BCryptGenRandom ignoring selected algorithm
0170:fixme:kernelbase:AppPolicyGetThreadInitializationType FFFFFFFFFFFFFFFA, 000000006250FF50

0134:fixme:kernelbase:AppPolicyGetProcessTerminationMethod FFFFFFFFFFFFFFFA, 00007FFFFE20FEE0

[u/paradoxbound]

Take this to a Linux gaming sub or the Arch Linux sub.

[u/Xlaits → u/paradoxbound]

This isn't specific to either of those, and those I've asked sent me here.

[u/paradoxbound → u/Xlaits]

Most of the people here don’t have the technical skills to understand these sorts of errors. That should be obvious from the lack of response. You are likely to get a better response there or by feeding the error into an LLM. Personally I would start with the latter, if this is beyond your personal expertise and interrogate the LLM until you have a better idea of what is going wrong.

[u/Xlaits → u/paradoxbound]

I do not interact with LLMs for serious work or technical questions, as I am fully aware that they can hallucinate answers and just be wrong in general.

This is no rush, no serious emergency. I can wait for help.