Our application requires MDMs to push down a trusted SSL intercept certificate to function properly. In releases prior to Monterey Beta 10, an MDM profile could install the correct certificate and trust it for the system. However, beginning in Monterey Beta 10, the certificate is pushed, but no longer trusted - the end user must go into Keychain Access and manually trust it.
Additionally, certificates cannot any longer be trusted via:
security add-trusted-cert -d -r trustRoot -k "/Library/Keychains/System.keychain" "/path/to/ssl-intercept.crt"
(Logged as FB9701844)