Try to go into Windows Event Viewer - > Windows Logs - > Application.
Do you see any errors here? And if so, what do they say?
Faulting application name: TaleWorlds.MountAndBlade.Launcher.exe, version: 1.0.0.0, time stamp: 0x5e9c3092
Faulting module name: KERNELBASE.dll, version: 10.0.18362.778, time stamp: 0xafa78a6a
Exception code: 0xe0434352
Fault offset: 0x000000000003a799
Faulting process id: 0x23b8
Faulting application start time: 0x01d6171cba8068db
Faulting application path: C:\Program Files (x86)\Steam\steamapps\common\Mount & Blade II Bannerlord\bin\Win64_Shipping_Client\TaleWorlds.MountAndBlade.Launcher.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 87c29664-a480-45e6-a05c-de2c8f6d0067
Faulting package full name:
Faulting package-relative application ID:
TaleWorlds.MountAndBlade.Launcher.exe
1.0.0.0
5e9c3092
KERNELBASE.dll
10.0.18362.778
afa78a6a
e0434352
000000000003a799
23b8
01d6171cba8068db
C:\Program Files (x86)\Steam\steamapps\common\Mount & Blade II Bannerlord\bin\Win64_Shipping_Client\TaleWorlds.MountAndBlade.Launcher.exe
C:\WINDOWS\System32\KERNELBASE.dll
87c29664-a480-45e6-a05c-de2c8f6d0067