they should at least opensource their implementation. they may have errors there. should we just trust everything?
You can connect with wireguard and not run any mullvad software on the client side.
Though that's generally the case with VPN providers, whether openvpn, wireguard, etc.
I guess they could introduce some vulnerability on the server side if they rolled their own wireguard implementation or patched it. Though it seems unlikely to me.
https://mullvad.net/en/help/easy-wireguard-mullvad-setup-lin...