I used a microscopic subset of the features. Aside from them hosting my email, I don't think I'm any different from other users. It's just me; I'm not really a business. I notice some differences, mostly in limitations: less storage, features of my Pixel phone that sometimes don't work with that account.
I'll probably upgrade to whatever the minimal plan is just because it's less trouble than any alternatives. I've had this for a very long time, so there's a lot that I'd rather not touch. They're providing a fair bit of value and I don't really mind paying for that.
But I'm surprised not to have heard about this by email. Perhaps I'm on yet another different legacy thing.