Issue with ONU Monitoring on BDCOM GPON OLT

We are using Observium to monitor BDCOM OLTs (EPON and GPON). While ONU information is displayed correctly for EPON, it is missing for GPON OLTs.

We've attached the relevant MIB files and SNMP walk outputs for the GPON OLTs to assist in troubleshooting. Could you please confirm if ONU monitoring is supported for GPON OLT, or if further steps are needed to enable it?

I am using -> Observium CE 24.12.13800