The top of the homepage says File Pilot was made from scratch (so I'd expect inherently less technical debt than something that's been around since the 90's). Comparing its screenshots to Directory Opus, it looks less cluttered, or at least slightly different. The interface looks like it adheres to the Windows 11 design style a little more, versus Directory Opus's screenshots looking like Windows 8-10.

If I used Windows regularly, I'd probably appreciate having another option, just as I appreciate (and even take for granted) the ability to switch between various options on Linux.