Is this a reference to something? I haven't heard much about Google One's support good or bad.
The concern I'd have with G-One is that if you lost access to your account, you also aren't a Google One customer, and the support likely won't assist you. Creating a chicken/egg situation.
Not a reference to any story, just a few personal experiences. I had various issues, and they couldn't escalate anything to actually fix them, they just read support docs back to me. It's not like the paid support that gsuite customers get (although I'd be happy to pay more for that if I could).
The concern I'd have with G-One is that if you lost access to your account, you also aren't a Google One customer, and the support likely won't assist you. Creating a chicken/egg situation.