I don’t think so. I mean, even if an instance with an important community has a problem (e.g. goes offline) we can simply create that community on another instance, but as long as there are no problems I think it’s better to have just one community.
I chose vlemmy.net for the exact same reason, too. Also it was the top instance on https://join-lemmy.org/instances the day I wanted to join another instance (I was on lemmy.ml then).
Aegis is great! I really don’t know why people use Google Authenticator when much better alternatives exist.
I think I saw this around four years ago for the first time… someone sent it to me on telegram, but in another language.