chock-a-block
I did not need to "install" google services on mine. I did have to enable ESIM functionality. GOS ships with this, but it is turned off by default, because it is proprietary/non-FOSS code owned by Google (?).
I don't actually know if it's okay to turn that option off once the ESIM itself has been installed. I... Have not been having a good time with my ESIMS but I am by all accounts an exception, not the rule, and it doesn't revolve around GOS functionality regardless... Anyway, hopefully someone else can fill us both in regarding this detail.