The most noticeable and significant change that the Apple AirPods (third-generation) brings is the AirPods Pro-like design. The earbuds have a Force sensor for pressure control, just like the AirPods Pro.
Apple claims that the new AirPods have a skin-detect sensor that can accurately detect whether the earbuds are in the ear, in a pocket, or on a table, and can pause playback when they are removed.