Regarding the APK file itself: If downloaded from a verified source, the Flow Desktop Launcher is generally safe. However, because it is a launcher, it has access to your wallpaper, app list, and potentially your widgets.
After installing Flow Desktop, you can disable "Unknown Sources" again. The launcher will continue to work normally. flow desktop launcher apk download
download APKs from:
Flow Desktop Launcher was an ambitious project designed to transform Android 10's experimental "Desktop Mode" into a functional, Windows-like workstation experience on secondary displays. Critical Project Status Update Regarding the APK file itself: If downloaded from