Glad I saw this thread. I was about to order both glass roof sunshields, since I don't want to add additional tint to them. Plus it's cheaper to buy the sunshields, and they can be removed in winter. There are reportedly other aftermarket alternatives at half the price, but I want a perfect fit. And now we learn they don't fit anymore. What does Tesla say about that??? Are they going to come up with a new set, or they expect us 2021+ owners to live with bad fit? In that case, I'd have no choice but to look at the aftermarket. Hopefully we can find an answer before spring. I'm going to wait to buy anything.
And yes, I also want to know why Tesla made that change. And if it impacted the rear roof glass or not. In other words, did they make the front smaller to enlarge the rear? Or they enlarged the middle portion between glasses, so the rear remains the same? I need to know this too, since I want to cover both glasses. Thx.