> I think I’ve reported this as a bug to Google a couple times, in a couple different apps… as they do it in their other apps too.

Alas, I don't think it's a bug. A PM or VP probably got a bonus for this.

> How about just giving the option to login with Google if so choose to login, and not spam it on every website just for visiting?

Yeah this is kinda weird. I don't know if it's browser specific though. I use Firefox on my main computer and I think I still see it. Which means that the website owner opted into this weird pattern. No other auth providers do this. Just Google.