I'm surprised this works for you. Every time I've tried to use my GV number for MFA it's rejected. It's easy for companies to check if a number is assigned to a "legitimate" mobile provider and if not, they just don't accept it.
Is has come up occasionally. But not for anything that’s been a show stopper. I think discord was the most recent, which I use totp for MFA anyway but they want some type of verification or something.
