When I select a file and want to copy or move it, if I browse through the folders and there are many sub-folders, especially with long character names, it happens that this long list replaces the screen and you can't select anything.
I put videos to show the problem:
With nautilus the problem is not there:
This is specifically about the cascading menu structure that shows the filesystem hierarchy accessed from Context menu > Move or Copy. The menu becomes overwhelming and unusable once you navigate anywhere with a lot of folders. Even beside that, the deeper your folder hierarchy, the more of the screen it takes up.
What Nautilus does instead is to immediately open a file dialog and allow you to select the location there. Gwenview does the same thing for its Move to.../Copy to... functionality, so there's some precedent.