Airfoil and Airfoil Satellite have full compatibility with Apple Silicon, with no known issues.
For the moment both Airfoil and Airfoil Satellite native Apple Silicon support is only available in the beta release.
Stream any audio from your Mac all around your network. Send music services like Spotify or web-based audio like Pandora wirelessly to all sorts of devices, including the Apple TV, HomePod, Google Chromecast, Sonos devices, and Bluetooth speakers. You can even send to iOS devices and other computers.