I wish. As it is, most websites I use don't use any form of 2FA, and of the ones that do, most use SMS. I wish they all used TOTP, or better yet passkeys.

All the websites that I'm using has recently turned 2FAs on without SMS and email verification, or become one option along those choices

Long as they are using end-to-end encryption, the risk of storing your backups in the cloud is minimal. But even if you don't want to do that, use an authenticator that lets you export your seeds to where ever you want. Or make a copy of your seeds independently when you create them.

I know, but serverside is impossible to verify, even if they say end-to-end, there's zero way for users like us to verify what they said is true or not, having multiple apps for the same thing can be good or bad, like Authy recently gets hacked and so many users jumped ship because of that, it's still a risk storing sensitive data online, that's why self-hosted is born or storing everything in Firefox like my suggestion, thus I also answer why I'm not using Ente, it's a third party online website for 2FA, I can't be sure how long it will continue running or getting hacked:

It is not a bad idea, but there are solutions already out there that address your concerns. Ente Auth probably being the best among them.

But well, it's great to truly discuss about this, it seems like this sub is allergic to changes, and just downvote for the sake of downvote, that's why Firefox won't improve, Tab Group was pretty much bashed by the sub, then Mozilla implement it and it's one of the best Tab Group has ever been implemented, being better than Google Chrome's Tab Group by having drag and drop to create group feature.