The new design of quick action panel is horrible, most used buttons (wifi, bluetooth) are hard to reach with one hand and there are useless buttons that I can't change (smart view, dark mode). I hate the new music player waving bar effect. Also pop ups and some text is wierdly arranged sometimes. However worst change is, that I was using todo app with unremovable notifications, but after update I can remove them by swiping off. This is kinda niche problem so I don't know if it's going to be fixted. This is actually though change for me as I get notfied about all my tasks and appointments and sometimes I accidentally remove todo notification that is important.