I started a new playthrough this weekend after having not touched it since launch. It's definitely a lot smoother now, seems to feel more consistent with raytracing and ultra setting turned to max.
Combat feels a bit better, the last time I played it was like fire, bounce back (heal), fire, bounce back, etc. I had a great time of it the first go even so and having an even better time this time around. I'm not too hard on it though, the RPG open world/AI aspects are just one of those things... can't polish a turd. It seems like at some point they realized that they were never going to have a real RPG, or even a GTA on their hands so just went straight immersive story / generic Ubisoft "open world". For what it does do well, there isn't anything else like it. If anything, hopefully, they learned from their abject failures and we get a second one in a decade that blows the roof off.