You can select up to five contacts that also have an iPhone to help you get back into your account if you get locked out (ex. losing your phone and getting a new one)
Advanced Data Protection has a social recovery option that does not require end users maintaining a security key. It’s far more accessible to average users than one might think, though perhaps still a bit intimidating.
On Lemmy it’s entirely up to the moderators of any given instance or community. Some instances are fiercely anti-censorship. Some will have a more restrictive approach. We can always create new instances and communities, and vote with our engagement.
I’m up to date 🤙