Never mind.
This is the cause for when Silent = false:
10/04/2020 14:24:19.143: c:\program files (x86)\steam\steamapps\common\Outer Wilds\OuterWilds_Data\Plugins\steam_api64.dll: [S_API FAIL] SteamAPI_Init() failed; create pipe failed.
10/04/2020 14:24:24.144: c:\program files (x86)\steam\steamapps\common\Outer Wilds\OuterWilds_Data\Plugins\steam_api64.dll: [S_API FAIL] SteamAPI_Init() failed; create pipe failed.
That file is version 4.4.91.85 of Steam Client API by the way.