I actually noticed that when I move my seat all the way down, the HUD is no longer skewed, so it's possible this has something to do with the specific angle at which I'm looking at the projected image. Unfortunately, I'm not that tall and can't keep the seat all the way down.Your pictures do look skewed, but there are various anamorphic optics that make photography challenging so it could be the viewing or capture angle. It's certainly worth asking service.
The HUD works for me fine with its current limited functionality. Sometimes it looks a bit skewed but it's hard to be certain. I'm pretty much assuming that it'll require a service visit when there is the eventual AR functionality rolled out, so I haven't seen any point on pushing on it for now.
I've never had a car with a HUD before, so I can't really say whether the same issue applies to other brands. Honestly, it feels weird that I have to adjust my seat just to see the HUD properly in a $100k+ car.
I'll probably go to the showroom and compare how the HUD looks on another Gravity.