I'm just going to turn this thread into my general experiences of going from an M1 -> M2 MacBook Air.
1. I still miss the wedge shape. The flat shape is a little annoying on the wrists when I'm working on a desk. I do notice in favor of the new design, however, that the weight is more evenly distributed and carrying it around when it's closed feels a lot more balanced and comfortable. So it's not all bad.
2. The keyboard is improved. I'm surprised no reviews picked up on this or talked about it, but the keyboard seems to have more travel than before, and the full size function keys are a nice bonus.
3. The webcam and screen is greatly improved - worth the price of the upgrade alone for me. The extra vertical pixels you get from moving the menu bar up to the notch is great. I will say the webcam does do some sort of instagram-like beauty filter. It's subtle, but it is there.
4. I don't notice a difference in performance, but I'm not a super power user.
5. Battery life and thermals are still excellent. I can put this thing on Low Power Mode and use my laptop for hours on end and it's at like, 95%.