There are many reports of live lyrics rolling out to YouTube Music for Android (version 6.15) and iOS (6.16) today. You might want to Force stop YTM from App info before checking, and be sure to try multiple songs if you don’t see it immediately....
It seems like OneUI 6 is coming soon. However with the screenshots of the control centre UI, it seems like the ‘one handed’ UI focus is disappearing as more UI elements are brought higher…