The change in the mobile app where pulling down on the channel list focuses a search box and opens the keyboard is quite jarring too, especially when that UX generally means 'get me the lastest updates'
Because when you have 500 devs, they have to build _something_. It's why every single good software product bloats to become a slow, confusing, mess of features.
Software development feature entropy is the 4th law of thermodynamics.