Yes but many libs doing the same thing. But when there are big transitions like now people still want to use old deprecated librarys even if they are not best suited for the job in the longer run... I still is not convinced PyQt is not the best tool for the job. Because if you access so much of the core Qt this days its probadly because the app is using QtWidgets and that stuff will be less and less used also on Linux desktop whenm QtComponents is more stable (that also means less UI fragmentaion between embedded and desktop hopefully..)