https://bugzilla.kernel.org/show_bug.cgi?id=211277
--- Comment #41 from kolAflash (kolAflash@kolahilft.de) --- I can confirm Jeromes result.
Bug is gone with pci=noats. (Debian-11 kernel 5.10.0-8-amd64)
I ran 50 suspend/standby rounds. Also I used the notebook for 2 days and suspended it multiple times without issues.