The pop-up camera was mostly a “fad” of 2019, also without the removable battery requirements you could add the Zenfone 6 to the list if you include the inception year of 2019.
Yup. Removable batteries are more rare in flagships than headphone jacks. Currently rocking a Zenfone 6, my next one will be an Xperia - as long as they don’t mess it up by removing one of the critical features. (I’m still salty about the removal of the notification led.)
Most of those “sequels” had something new and innovative and not just a spec bump. The Switch 2 does not really have anything so far