Then, there's Wanda/Scarlet Witch. I think they completely botched how this transitions off of Wandavision. So much so, that I think I would recommend those who haven't seen it to just skip it, or at least see the movie first. It's not that what happens with her doesn't make sense (as far as comic book movies go), it's just executed terribly. It's lazy. At the end of Wandavision she has started to come to grips with the loss of vision (but obviously still grieving) and her make believe kids. The kids are still an extremely weak part of WV for me, and it is magnified times 100 in DS2. They were entirely fictional characters made up in her head. She can recreate them and live with them out there in that cabin in the middle of nowhere if she is so hung up on them. It's not like they were real and taken from her. Her "loss" is just kind of stupid to me.
Moving on from the kids, Wanda is still trying to come to grips with everything and releasing the town, realizing that she can't do that to people for her own issues. Then we get a brief post credits scene that everyone wants to use a crutch to excuse the poor storytelling, as if it sufficiently expresses what's happening. Basically, using an alphatbet scale where A is being of sound mind, being emotionally mature, and properly dealing with trauma, and Z is just off the deep end psycho, Wanda starts WV at around a G, and at the end is back to a B or C and headed in the A direction. Then we jump to DS2, and she's at a Y. And all we get is, big bad evil book turn sad Wanda big bad evil. That's it. That's the entirety of Wanda's arc in this movie, a pretty constant Y, maybe close to Z. Then at the end, she goes through the same thing we saw at the end of WV. She sees the error of her ways, and starts reversing course. Been there, done that.
Now, I don't mind, at all, that Wanda went bad, or full blown bad. I fully expected there to be some conflict/struggle with Wanda and her possibly going down a bad path (whether that be the main timeline Wanda, or one from another universe). I just hate that it was handled so poorly.