Just add "accounts.google.com/gsi/*" to your filters in uBlock Origin.

Thanks for your reply, but I am sorry this is Greek to me. While I appreciate it, this seems to be way over my head. I am using Malwarebytes and I have no idea if they would potentially "collide". Even Malwarebytes causes trouble. In addition, after looking up what uBlock Origin might do, etc. , it seems that it requires technical knowledge, which I do not have. I am looking only for the "KISS" approach, not complications and headaches. Otherwise I will just keep closing the annoying Google display...

I've seen that as of late this is site for Google ot hosted by Google. There's not much you can do but make sure the tabs that is connected to that popup is the only way you can press the "x" to stop it.