This specific issue only happens on Intel hardware, as this discussion is about a problem caused by a bug (Erratum) in the Intel hardware.. You obviously still don't understand that.
OK. So, point being, that you are facing an issue and you are...
Either you posted in the wrong thread, or you did not understand the topic at all.
This thread is about a very specific issue, that affects certain Intel Ethernet controllers.
However, in your pci listing I do not see one. So what exactly is it...
Debugging via serieller Konsole in der VM und Überwachung des Syslog im Host, während man probiert die GPU durchzureichen.
Dazu das hier: https://github.com/LongQT-sea/intel-igpu-passthru
Viel Spaß!