It's already a problem. You can see that they're already scared to piss off their sugar daddy
You have an official "Facebook Container", but of course no official "Google Container" ... even though Google is the one that does actual tracking across the whole internet and has JS/fonts/etc. on nearly ever webpage
There are official "anything" containers so that's really not a problem.
The facebook container was just a way of introducing people to the container concept, and they can move to the generic Multi-Account Containers so they can really separate everything including Google.
They're also really nifty to log in to multiple microsoft tenants which are really a pain in the ** to deal with otherwise.
You have an official "Facebook Container", but of course no official "Google Container" ... even though Google is the one that does actual tracking across the whole internet and has JS/fonts/etc. on nearly ever webpage