A modern version of OS X: openconnect is should work on most recent OS X versions. It has been tested and seems to function correctly as far back as 10.9. Mac OS X ...

Native apps support macOS, Windows, iOS ... Before traveling, you should already have the VPN set up and working. In some countries, like China, you will have problems even downloading a VPN.

I brought this to Proton’s attention, and the company promised a fix with an appropriately worded warning between connections in its next MacOS app update. Overall, Proton VPN is the best free ...