YouTube-DL-PyTK (formerly known as YouTube-DL-GTK) is just a graphical launcher for yt-dlp. Its purpose is simple; to facilitate the downloading of non-copyright-protected videos from certain internet websites including YouTube.
It is written in Python, so it should run on Windows and Linux systems alike. I don't own an Apple computer myself, so the compiled binary releases for macOS may be delayed until I get a chance to have it compiled. Source code is included and can be executed...