The fact that you did not know this does not change this fact.

I acknowledged that web sites don't explain this well, even actively hide it. So it's understandable not to know this.

But I also reminded that this doesn't actually matter because you WERE also given emergency recovery passwords, and told to keep them, and told why, and how important they were.

You were never at risk of being locked out from a broken device EVEN THOUGH you didn't know about saving the seed values, UNLESS you also discarded the emergency codes, which is not a 2fa problem, it's an "I didn't follow directions" problem.

And even if all of that happened, you can still, right now, go retroactively fix it all, and get all new seed values and save them this time, as long long as your one special device happens to be working right now. It doesn't matter what features google authenticator has today, or had a year ago. It's completely and utterly irrelevant.

My premis remains correct and applicable. Your statement that 2fa places you at at risk was incorrect. You may possibly be at risk, but if so you did that to yourself, 2fa did not do that to you.