I'm using Debian 12 on a Thinkpad, and I'm experiencing frequent disconnections with Mullvad. Since it works well on Windows 10, I don't believe it's a hardware issue, but I've encountered the same problem on Debian, Mint, and Ubuntu.
On Mint, Mullvad tries to reconnect, and it succeeds about 80% of the time without needing a full restart. However, on Debian, it simply drops the connection—Mullvad still shows as connected, and my computer still says it's on the network, but there's no traffic at all. When I hit the red restart button to resolve it, it just disconnects again within a minute. Anyone else faced a similar issue?