@TeamYouTube why do you guys keep changing the apps interface not only did you change how the fullscreen works but the bloody popup playwr no longer collapses when I swipe right.
Hmm, if you swipe your finger from left to right, it should bring you to the previous video you've watched or to the previous video in the current playlist. If you're seeing otherwise, try reinstalling the app and see if it does the trick. Let us know if you meant something else.