Jason Snell, sixcolors.com:

On the one hand, the fact that you can get noise cancellation on base AirPods is amazing. Their hard plastic body means that they can’t make a soft seal like the silicone tips on the AirPods Pro can, so there’s more outside audio leakage to compensate for. However, there’s a huge advantage there: If you can’t stand silicone ear tips sticking into your ears, maybe the AirPods 4 will let you finally use ANC AirPods for the first time.

That’s me! Tried the AirPods Pro a few times but they didn’t work for my ears. I love the AirPods 4 and their ANC is plenty for me.