Many third party switches, especially in the "super smooth feeling" category, seem to be using softer plastics than original Cherry switches. Those iirc have a

Many third party switches, especially in the "super smooth feeling" category, seem to be using softer plastics than original Cherry switches. Those iirc have a little bit of glass fill in them, which makes the material much tougher and more wear-resistant, but results in the "crunchy" feeling of the switches. Bouncy switches are a real problem with third-party switches as well, even though cherries generally don't do that.