I feel like Cyberpunk and Starfield are kindred souls in that both of their biggest flaw is that you get this meticulously crafted world that is incredibly engaging and immersive but you're constantly taken out of the immersion by jank.
In Cyberpunk it was the NPCs being dumb as rocks and saying/doing things that make no sense, along with those bizarre looking child NPCs. I remember in Cyberpunk walking to the main apartment building and I saw two guys were arguing with their landlord. It was actually a pretty interesting argument so I stuck around and listened in. When it resolved the landlord said something like OK I'll go fix it and then they all just stood there. 60 hours of playtime later they're still just standing there in the same spot. It totally kills the vibe they were trying to create.
For Starfield it was the character's faces and facial animations, and the way my companion would constantly do weird stuff like randomly sprint forward any time I entered a new area. You get this amazing world where every inch of it feels genuine but then some idiot running into a wall just reminds you it's a silly game.
I keep comparing these games to ones like FFXVI or RDR2 which seem to be the pinnacle of immersion. RDR2 with its incredibly natural NPC interactions and random things you'd stumble upon, and FFXVI with the unbelievably high quality character models and facial animations.
I know it's not entirely fair to compare any games to ones that Rockstar and Square make since they are the cream of the crop when it comes to production value, but I also can't just ignore that those games did things so well and that I am aware of what is possible.
I still ended up putting 50 hours into Starfield, most of which flew by without me even realizing how long I'd spent but I kept wishing that I was 15 again with all the time in the world because it's the kind of game that, if it gets its hooks in you, has nearly endless content.
Cyberpunk was the better game for sure, I'm going to have to revisit and try the update/expansion at some point. I have a 4090 but even with that I feel like I have to wait until a better video card comes out to really enjoy the new graphical features.