Generally speaking, macOS uses option or shift to modify existing commands. Hence cmd-c / cmd-(opt)-v.
The paradigm is Copy -> Move or Duplicate.
In Windows, it's Copy or Cut -> Paste. I don't mind this change from Windows. Actually, I slightly prefer the Mac version, because I can change my mind on what operation I want to do. Windows front loads the choice, and I have to do it again if I decide I don't want to copy or cut anymore.
As for folder nav/manipulation, I find Finder to make much greater sense, whereas Explorer was just, this makes sense because it's always been this way (don't get me wrong, Finder has its shortcomings in other areas, although File Preview [space bar] is pretty awesome).
Finder: Generally speaking, arrows do everything.
* Movement within folder: up/down arrow keys
* Move out or into a directory / into a file or app AKA open it: cmd up/down
* Expand/contract a folder: left/right arrow keys
* Rename a file/folder: Enter
Explorer:
* Movement within a folder: up/down arrow keys
* Move into a directory / open a file: Enter
* Move out of a directory: alt up
* Expand/contract a folder: left/right
* Rename a file / folder: F2