Yes - the mesh in the headband stretching is a real issue - it means that those bars that go across dig into your skull.I have had since launch. These sound great and continue to do so. I can’t think of any improvements for sound needed.
However a design overhaul is needed. I have not used heavily, and never outside the house, but the mesh in the headband has stretched and no longer cushions. I get headaches. This is a bit dumb for pricy headphones. None of my other pricy headphones in the last decades have worn out like this.
The case also needs a complete rethink. It was stupid form over function on launch. And it continues to be so. I have a pair of Sony XM4 that I use just for travel because the Apple case is terrible.
You can get padded rubber mesh covers from Amazon that help - but you shouldn’t have to.