Hi M,
Thank you for sharing your question. I understand how annoying it is when a simple thing like moving emails suddenly takes extra steps, This change happened because of a recent Outlook update. Now, when you go to move something, you have to click in the search box before you can start typing. I am here to help.
They did this as part of some UI tweaks, and right now, there’s no way to go back to how it was before. I suggest suggest using shortcuts or other ways to get around it. For example, you can hit Ctrl+Shift+V (on Windows) or Cmd+Shift+M (on Mac) to move stuff, then type the folder name right away. quick way is to add your go-to folders to Favorites so you don't have to spend so much time clicking around.
I hope this helps.
Best Regards,
Noel