The Qt QML TreeView is a steaming pile of shit...
That is all.

You never know how freaking complicated file managers are until you need to write one. I am adding context menus to allow for quick things like copying folder path to clipboard and open path in new system file manager. These are essential for doing things fast. Also, my context menu is not the system context menu that is full of bloated shit from every app in the computer. So I can streamline this menu to only include things that enable doing things fast in my program. It is fun, but really frustrating at the same time.