OneUI 7 beta... probably by the end of July or early August, per new rumour...
The relocation of the search bar in the app drawer from the top to the bottom of the screen is a welcome move. Suits well with the design language of OneUI for easy one-hand use.
Again, it may be a good idea to put to mind all these changes are still very much in internal beta stages... some of them may still not make it to the final release... just like the retracted calendar app icon or the gallery app icon, which was tested with a red flower on a white background in OneUI 5.
