This is just an FYI that may become a PR at some point, to enhance the Finder Mods. (Requires keyszer.) I think I have a pretty solid (draft) fix for the issue of wanting to use the Enter key to ...

F2 is the hotkey in Windows, which can help you rename a file or folder. You need to simply select a file or folder, and press F2 (or Fn+F2) to rename it quickly. However, if that stops working, then ...

Pressing F2 gives the renaming pop-up for the selected file in the sidebar, if the focus is on a document it should rename that document.