The entire Google account will be suspended unless there's payment. I'd have to audit everything my Google accounts are used for, find alternatives, train users on the N new services, and deal with all the migrations. Which frankly is impractical. Some stuff is not easily migrate-able (YouTube subs/history, Android purchases, ...), and unless I don't need a Google account again ever, I'll probably end up migrating to an @gmail one at least partially.
But at least I keep the domain?? Which I'd then be paying a mail provider about the same amount for. Plus probably more for any other paid services.
To say nothing of convincing and migrating my family/other users.
If I could only keep the Google account going with my own mail/services that'd be something. They say I "may" retain access to YouTube and Photos, for now. And the account will be in a 'suspended' state that requires payment to get out of.
It's not exactly a surprise, and I know "that's what I get" for using Google services. But it's still scummy.