My MBA sits on my desk and doesn't get moved around much and once it's here, I really can't tell any difference in the design because the shape isn't clearly visible. It makes no difference to me whether I can see the wedge from the M1 shape or the squareness of the M2 shape.
The notch is a different matter. I'd prefer it if it wasn't there but I do appreciate the extra few pixels in height on the main screen. I used bartender on my M1 MBA and have it installed again on the M2 and I can't have anywhere near as many icons on display. That's fair enough, I probably have too much up there anyway! I now have a lot which only appear when they change for whatever reason.