I stopped using Mullvad when they discontinued OpenVPN support (another one to add to the parent list). OpenVPN, if nothing else, provides a wider array of connection options that have a better chance of fulfilling your specific network needs. It supports both UDP and TCP, unlike WireGuard.

I say this respectfully, but Mullvad is perhaps “dumbing down” their VPN service in an effort to simplify their operations and cater to a wider and more general audience.