What is the best resource for employment history?

What would be the best FHIR resource for a patient’s employment history data?

I have seen that in the history of changes that in Release R4 Ballot # 1 the OccupationalData resource was added (https://hl7.org/fhir/2018May/occupationaldata.html). I think this resource is the best for my purpose. But now in FHIR R4 I can not find this resource and I have not seen anywhere that was eliminated.

What happened to the OccupationalData resource? What other alternative resources can be used?

OccupationalData got turned into an implementation guide leveraging observations based on feedback from the implementer community. You can see the current draft of the IG here: https://build.fhir.org/ig/HL7/us-odh/