Had the same happen to me, game hangs + sound glitch and then my PC reboots.
Inb4 "IT's a hARdwARe IsSUE!". PSU is brand new, and all the components are less than 7 months old and have been checked for faults less than 2 weeks ago.
Also so far it only happened in Bannerlord. It happened when I was in my inventory screen swapping gear.
5700 XT, Ryzen 3700x, 16 GB RAM is what I use.