I don't use the Mac App Store. I run my VPN on a second device, because I no longer find the macOS to sufficiently preserve my privacy.
It's insane to me that Apple thinks it's okay to demand hardware serial number, name, street address, email, and phone number to download free privacy apps. An organization that had privacy as a value simply would not do that.
Apple has banned apps that want to use the NetworkExtension API from being self-signed, OR by being Apple-approved-developer signed and distributed outside of the App Store. You can download the windows Wireguard client from the Wireguard website, but not the mac one.
They even recently censored the donations link in the Wireguard mac client, because App Store.