The official name of the app
Mullvad VPN

Is there a supported version available on a stable release channel?
Yes

Proposed New App Status
✅ Yes, Full Native Apple Silicon Support

Related Issue Tracker Links or discussion
https://github.com/mullvad/mullvadvpn-app/releases/tag/2021.4

An Official App Download Page
https://mullvad.net/en/download/macos/

Additional context
N/A

Full Screenshot with the App and Activity Monitor(if self reporting) or Silicon Info