Has anyone been able to make this actually work as a macOS screensaver? I'm using Tahoe and when I go to System Settings -> Wallpapers -> Screensavers, I don't see any option to select like Afterglow or any of the wallpapers I installed.
Go to the settings in Afterglow first and enable it. Then in Settings Wallpaper tap the 'Screen saver..' button. Select 'Custom' and then scroll and it is the last item to the right in the 'Other' section.