Hello @AWBuchanan7, this looks like some lines of interest from the log:
[000000BC:] EXCEPTION handling: System.InvalidOperationException: Steamworks is not initialized.
exception inside UnhandledException handler: (null) assembly:Z:\mnt\Storage\SteamLibrary\steamapps\common\Proton 5.0\dist\share\wine\mono\wine-mono-4.9.4\lib\mono\4.5\mscorlib.dll type:InvalidOperationException member:(null)
[ERROR] FATAL UNHANDLED EXCEPTION: NLog.NLogConfigurationException: Error when setting property 'Name' on Debugger Target[(unnamed)] ---> System.BadImageFormatException: Cannot box IsByRefLike type 'System.ReadOnlySpan`1'
at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0006a] in <a1336bab325642fd867e87ca7626bada>:0
This game is now available natively (store page doesn't reflect this yet).
Compatibility Report
System Information
I confirm:
Symptoms
Crash on launch: game process starts and immediately crashes.
Reproduction
Log: steam-975510.log