Hello, Is there anything new on this? Thank you.

The extension has been in production for several months, it was working on Monterey, Big Sur, Catalina. It's a system extension. The entitlement: <key>Entitlements</key> <dict> <key>com.apple.developer.endpoint-security.client</key> <true/> <key>com.apple.developer.system-extension.install</key> <true/> <key>com.apple.application-identifier</key> <string>XXXXXXXXXX.AAA.BBBBBBBBB.CCCC.DDDDDDDDDDDD.EEEEEEEEE</string> <key>keychain-access-groups</key> <array> <string>XXXXXXXXXX.*</string> </array> <key>com.apple.developer.team-identifier</key> <string>XXXXXXXXXX</string> </dict>

Thank you for your answer, but I'm not sure this is exactly the same issue. The workaround doesn't seem to work on M1 Macs: "Workaround: Go to System Settings > Privacy & Security > Full Disk Access, select the security product, use the minus (-) button to remove, and then use the plus (+) button to re-add the affected security product. A system restart might be required to restore expected functionality."