One of my friends and neighbors just took delivery of a white 2021 SR+ yesterday, I did not notice this gap on his car. It was dark, but the car looked perfect from the outside as far as I could tell. I will take a closer look when I get a chance.
Really curious to see what the root cause behind this issue is, because it's not 100% obvious to me.
Make sure to inspect the car in broad daylight (I did this) and do it within the first few days. Then they'll cover any issues you might have.