https://mullvad.net/en/help/install-mullvad-app-linux
Trying to install VPN and these are the instructions Mullvad is giving me. This is ridiculous. There must be a more simple way. I know how to follow the instructions but I have no idea what I'm doing here. Can't I just download a file and install it? I'm on Ubuntu.
Agreed.
Unfortunately, Mullvad's instructions just have you download the key from mullvad.net and add it in with no further validation.
You can also get it from their GitHub page, at least for the individual debs. Not sure if they have the repo key on GitHub.