The Undo button in the top bar was quite convenient, because when we use the styling panel on the right with the mouse it is very easily accessible without breaking the flow. Now after the update We can only do it with the keyboard shortcut.
I know it is also accessible from the left menu, but that is quite useless for practical use, because it is "far" from the styling panel and also needs to open the menu then undo it and repeat this a couple of times for more undo.
So please put back the undo/ redo button to the top of the designer where it was before. They really do not take too much space. It also gives a visual reference if there is anything to undo.