This is an old bug, filed years ago. In the v3 design, with its greatly diminished dependency upon there being a formal title on binder items, you shouldn’t have your cursor pushed into a binder editing field unless you yourself put it there and pressed F2, or you created the new item from the binder. There are only a few places left like this.
At any rate, I definitely encourage getting used to the shortcuts in the Navigate ▸ Move Focus To submenu. Here is a longer thread on editor navigation, specifically about using the keyboard so you don’t lose your cursor position (which isn’t as important when splitting, but there are many times where it can be).