I've been looking into Apple's Endpoint Security Framework (ESF) and I can't see any reference to it on Fleet website. Do you guys support ESF querying from FleetDM? Any plan to do so?

That is more of an Osquery question imo but yes Osquery has 2 tables for Endpoint security right now https://fleetdm.com/tables/es_process_file_events https://fleetdm.com/tables/es_process_file_events TrailofBits has a "Future Directions" section in this blog which provides some future direction

Thanks a lot!