I’ve made edits and deletes, and as far as I can tell, once the instances sync up, those edits/deletes are synced as well - I have noticed a delay, but it usually kicks in like overnight (for example) when I make a change using my account on lemm.ee for my account on lemmy.world to see it, etc.
What’d you end up on, out of curiosity? I was on Fedora for a couple years, but with the whole Red Hat thing (that I don’t fully understand the implications of), I switched to openSUSE Tumbleweed. Still have love for Mint, though, after all these years.