I use an institutional VPN service by connecting using tunnelblick and the supplied configuration file. Apparently, the configuration file requires tunnelblick to load the "tap" kernel extension which is no longer allowed by macOS Big Sur. The tunnelblick developers have posted that this issue cannot be fixed: https://tunnelblick.net/cBigSur.html. They suggest disabling SIP to use such configs but even that might not be supported in the future. Is there any other client equivalent to tunnelblick that can be used? Is there any other workaround to make this work?
This is the other linked article: https://tunnelblick.net/cTunTapConnections.html