I say “FIloniverse” because TCW and it’s spinoffs have kind of just become their independent thing. Honestly I wish they would go all the way and start contradicting the movies outright instead of trying to make everything fit together. That was never going to happen.
It’s super frustrating seeing all the post RotJ stuff on the timeline slowly working towards stitching Rise of Skywalker in.
Like you said, there’s definitely space for Alternate Universe/ Alternate Continuity stuff, but they seem dead set on having one true timeline - even if that gets in the way of interesting storytelling.