To determine if PKMID is dynamic (EAP Authentication Key Management [AKM] defined) just check the RSN-IE field in beacon, (re)associationrequest or EAPOL M2 or the Key Descriptor Version field in EAPOL M1, M2, M3, M4 messages.
EAP AKM defined PMKIDs are dynamic.
EAP AKM defined PMKIDs are dynamic.