you should run an insecure app in a vm, ideally but sandbox-exec is nice as well - eg to run zoom – https://gist.github.com/cielavenir/02f322e322a2a3555dbf2b38f2fedd59
echo “127.0.0.1 ocsp.apple.com” | sudo tee -a /etc/hosts
Driver
My daily driver Config
https://support.apple.com/en-us/HT201222 on mullvad browser autostart
VPN
“Our macOS app installs a Network Extension, which is a fully sandboxed process with no kernel-level access to your system.” - Obscura
“AFAIK all traffic is now adequately routed thru the network extensions meaning, firewalls should be able now be comprehensive”