Perhaps they don’t want to take the time to code it themselves, or they don’t have the coding expertise but want missing features.

So it’s only a VPN if you purchase the Mullvad addon?

And without the Mullvad option, it’s not really a VPN, but rather a way to get a different IP?

I use Tailscale

Per their website, it appears to be a free VPN? https://tailscale.com/pricing?plan=personal

Yet they have Mullvad (another VPN) as an optional addon? That’s confusing.

In order for people to connect to it you have to give them your home IP right? The mumble server’s IP is your home IP?