It feels so odd to me that people can’t tell the difference?! You’re not the only one, but can’t you see the vibrant colours? The deep dark blacks? Almost double the brightness?I did a side by side audio test of my M1 11“ iPad Pro and my M4 11” iPad Pro, and I couldn’t tell the difference.
Has the iFixit teardown confirmed that the speakers are in fact different from the prior model? Otherwise I would withhold judgment until we get more information.
Saw a bit sloppy teardown, there are different (round instead of rectangular) speakers.