Can confirm same happens on Pixel 8. Not enabling Zygisk is the only option I've found that works. I unfortunately Factory Reset before figuring out Zygisk was the culprit but I imagine a Safe Mode boot/restoring your original boot images would be enough to save you from a Factory Reset...
My own build of GrapheneOS with MicroG that allows Android Auto.
I'm not fully degoogled (I still use Maps and Tasks), but I'm closer...