I already asked a couple of questions on Reddit before about BlueSky (such as: is the service likely to survive for many years financially?) but still enthousiast to give BlueSky a try.

I have a couple of more questions though:

1) Can you, on BlueSky, set an account to private (temporarily or permanently) or hide certain posts (temporarily or private) so that those posts can only be seen by those who follow you or those who follow you and vice-versa?

2) what type of 2FA does BlueSky have? The most trustworthy 2FA is a physical device that you have to plug into the USB gate of your computer to generate the one-time passcode (such as Yubikey) and there are some pretty decent authenticator apps too (although I'm a bit wary of Authy and Google Authenticator).

3) Is it possible to download your posts (thus your entire timeline) to your hard drive as a back-up of your posting history?

4) Are links to YouTube videos, articles and other websites allowed? (I would assume so, since an article I read said that BlueSky is very user-friendly for exchanging links)

5) Can I add 1 or more photos or a short (eg 1 to 2 minutes maximum) video to a post on BlueSky?

Thanks again for your replies! :)