I realize your statement is subjective, but AirPods are made up of variants with plastic buds and variants that come with literally 5 sizes of squishy tips in the box.

So you have a total of 6 different fits to choose from. Plus the fact that there are surely dozens of third party tip options available for the Pro models.

The idea that anything with that many fit options can be considered the most uncomfortable earbuds on the market is not really possible in concept. That idea is as meaningless as saying that a size 9 Converse All Star is the most uncomfortable shoe on the market.

We are many generations removed from the original one size fits all product which was much different.