I have the same issue as the other people in this thread. The floating box gets in the way of the text and is very frustrating. I have to keep taking my hands off the keyboard to move it around so I can see what I typed. How did the software developers ever think this was a good idea?
Another reason the old way was better: with a Command F and the return key, you could do the search very quickly as easily, without removing your hands from the keyboard. When you were done searching, you just left it till the next time. Now you have to delete the extant search term and type a new one into the box--which is always in the way--it is far less convenient and very inefficient.
I came here to see if there might be any possibility of reverting to the old Word, which was simpler and more effective in many other ways too.
But that seems not to be. Improvements and upgrades just make the system harder to use and less efficient.