I have the same issue, except it crashes before even loading the game. Just after the intro screen when it bring up a player by a fire, I don't get to choose anything at all, other than don't load/use vulcan. I have made sure that all drivers are up to date, and system reboot and clean, still get the crash.

03/02/2021 19:13:29: ARG 0 O:\SteamLibrary\steamapps\common\Valheim\valheim.exe

(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 35)

03/02/2021 19:13:29: ARG 1 -force-vulkan

(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 35)

InitializeOrResetSwapChain 1360x768 hdr=0 samples=1

Unloading 18 unused Assets to reduce memory usage. Loaded Objects now: 88024.
Total: 58.401700 ms (FindLiveObjects: 3.980200 ms CreateObjectMapping: 7.938400 ms MarkObjects: 46.218500 ms DeleteObjects: 0.263800 ms)

Crash!!!
SymInit: Symbol-SearchPath: '.;O:/SteamLibrary/steamapps/common/Valheim;O:/SteamLibrary/steamapps/common/Valheim;C:/WINDOWS;C:/WINDOWS/system32;SRV*C:/websymbols*http://msdl.microsoft.com/download/symbols;', symOptions: 534, UserName: 'XXXXXXXXX'
OS-Version: 10.0.0


Mono DLL loaded successfully at 'O:\SteamLibrary\steamapps\common\Valheim\MonoBleedingEdge\EmbedRuntime\mono-2.0-bdwgc.dll'.


Stack Trace of Crashed Thread 9004:
0x00007FFBF637EDE3 (owclient) GetOverlayManagerController
0x00007FFBF636D357 (owclient) GetOverlayManagerController
0x00007FFBF634EFA6 (owclient) GetOverlayManagerController
0x00007FFBF6321946 (owclient) OW_DestroyInstance
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9C15AAC)
0x00007FFBF9C15AAC (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9C1B61A)
0x00007FFBF9C1B61A (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9C084E0)
0x00007FFBF9C084E0 (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9C2B080)
0x00007FFBF9C2B080 (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9BE67CA)
0x00007FFBF9BE67CA (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9D26111)
0x00007FFBF9D26111 (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9D2CE1D)
0x00007FFBF9D2CE1D (UnityPlayer) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBF9D2CEF8)
0x00007FFBF9D2CEF8 (UnityPlayer) (function-name not available)
0x00007FFBFA054A08 (UnityPlayer) UnityMain
0x00007FFC6D677C24 (KERNEL32) BaseThreadInitThunk
0x00007FFC6F1CD721 (ntdll) RtlUserThreadStart