Wow, where to start. Firstly, the functioning of Outlook was, surprise, surprise, changed again last night. Functions that were working yesterday do not work today.
There is the annoying select box that has once again shown up over the right side of the email folders instead of the drop down button that used to always be over the left side, which adds a step to selecting / deleting emails.
I cannot move selected emails to my designated folders, as this choice is gone. When I select "Move to different folder", the only choice that pops up is "Create new folder". So you have to try a work-around to do the simplest function.
I haven't even gone through most of the functions yet today, but there are surely more issues after reading the comments above mine. So many things Microsoft either didn't consider, or just went ahead and did anyway, that make Outlook almost unusable.