Looks fine here, here and here so it's likely not a problem on your side but problems with specific instances. Making a new change to your profile should forward the changes to other instances that may have missed the previous changes. That may be enough to jiggle the handle on the ones that don't have the current information.

I don't think it is normal behavior for every new local user to be sent out to the current 1500+ lemmy instances out there.

I think the process of cloning your profile is more like: 1) you post or comment in a community, 2) that specific remote instance has to have a subscriber to that community, 3) once the post or comment comes to that specific remote instance, it will grab your person profile from the home-instance of you as a person.

If anyone knows otherwise, please chime in. I'll work on adding testing code to lemmy_server to document the behaviors and their evolution.

EDIT:

It doesn’t show my avatar, banner or bio.

So the profile is there, but not showing avatar. Ok, I saw this a couple months ago when I was creating accounts on various Lemmy servers for testing. It seems to me there is a high amount of replication delay in EDIT to the profile. Try editing your bio to ass a word or something, see if it goes out. I found it was taking days.