Google has been testing a revision to the comments section for the Android version of YouTube. With the test, Google will allow YouTube users to view and scroll comments on Android even when in full-screen mode.
YouTube Premium subscribers on iOS are now able to use PiP to multitask and view YouTube videos even when they are using another app or have the screen off.
YouTube is showing some new buttons under select videos. Create button was introduced along with the shorts. Now they have added clip and applaud buttons too. But these buttons are available in select videos. Probably the creators are allowed to choose if those button should be visible or not..