[afavour]

> It establishes quick connection with server (maybe because it uses wireguard)

I'm actually kind of curious about what Wireguard does here. I think Wireguard says it's connected almost immediately even when it isn't, presumably holding traffic back locally while it waits for the connection to be active. I was wondering because I spent some time confused by a non-Mullvad Wireguard connection that wasn't working (turns out the server wasn't available at all) that nonetheless appeared as "connected".

[tata71]

network-manager UI, if I recall, just shows that the WG connection is turned on, not that there are packets coming back. (It's not a client-server, so this "makes sense")