The unneeded Klingon redesign. (Yes visual) They had that pretty well sorted after Enterprise and then had to redesign them with a ridiculous 4 nostril/ shaved pointy headed look. There was zero need for it imo. I know many don't care. But I do as well as many others. Then if course all the story retcons involving Spock/chapel etc. They had a chance to tell some new original stories but we are getting the same characters recasted for a third time starting with Disco into SNW....
There was no actual redesign but rather a design expansion. Give T'Kuvma hair, and he could pass as a TMP/ Berman Klingon, moreover the baldness is described as a tradition during times of (civil) war. The redesigns of the Borg and Romulans were totally needed? The green Andorian? Worf's changing forehead? The completely different Trill? It sucks when they do it in NuTrek because NuTrek.
What Fanon?? Picard was killed per dialog. He is merely a copy. Not one original cell is left in Android Picard. The one place that we humans have original cells left from birth to death is in the brain. Picard doesn't even have his original Brian. Just scanned and mapped ingrams or some such thing....lol
No, you just deliberately misinterpret the dialogue which describes a transfer, which was confirmed to be a transfer by the creators, also in DSC plus season 03 of PIC.
It is hilarious that you casually make up rules for this soft sci-fi setting with a good portion of fantasy, and think you can get away with it. We are talking about a setting that depicts characters frequently getting transformed into some sort of energy even if we ignore the transporter as well as stuff like Q turning Beverly into a dog. In "Our Man Bashir" most of DS9's main characters are uploaded into the station's computer as data with their "neural energy [...] stored at the quantum level," so no human(oid) cells there. According to your fanon, they would all end up as copies.