It's worse on android. You'll lose access to every google account you have (email, photos, drive) and if you circumvent by creating a new account and are caught then you will be banned again as well as all of the accounts that are associated with the new account. This could potentially destroy an entire business if they hire a banned individual and get their entire company banned because of it.
But you don't actually need any access to Google's stuff to develop for Android, so Google can't lock you out and destroy your business. Google can just cause a lot of inconvenience.
If that's what you call it, but business have had their paid Google Apps accounts nuked, and critical data lost. Publishing on Play is basically mandatory to get users.
I mean you can still develop and publish your APKs online but not being on the Play Store is enough to kill most apps.
I mean if you're so popular/useful that users will seek you out independently you might be okay but there are a lot of shops where the store is their only marketing funnel.
Possibly. Government agencies (Australia most recently) are starting to require citizens to use e-mail addresses from "trusted" partners. Google is one of those partners.
I'm pretty sure that already in 2019 losing a linkedin accout might have serious effect on your career. Not completely unemployable, of course but this could have significant impact in some industries
I don't think this is true at all, or at least not outside of certain niches. I deleted my LinkedIn account years ago, and doing that had exactly no discernable impact on my career.