just want to share my solution for the random crashes that occured after every 10 minutes up to one hour. Before that i went trough the whole recommended steps (reset game settings, install verification in Steam, reinstalling game and gpu driver, …)
Hardware: Motherboard MSI B550-A Pro
CPU: Ryzen 5 5600x
GPU: RTX 3070
My solution was a BIOS update (from version 7C56vAB to 7C56vAC. I did not see that anywhere in the forum or troubleshooting treads so I thought writing it here can help the one or other lost soul.
Best regards and good luck.