I've made available FS-UAE-Launcher_4.0.75. The only changes is that for Windows it is built with Python 3.8.10 instead of 3.9.2 (might work on Windows 7 now), and the macOS version is built with a slightly newer Python version (3.9.2 -> 3.9.5). @RetroKing please check if this version runs on Windows 7.
@jbl007 I moved your interesting post to
https://eab.abime.net/showthread.php?t=106972 for further discussion there