Good Day
Does Librenms poll BGP Peers on Mikrotik . Running latest version of ROS which according to Mikrotik has BGP support in SNMP
LlibreNMS version is 23.9.0-1-g8fd8d9b
If Mikrotik correctly implemented BGP4-MIB or BGP4-V2-MIB, LibreNMS will poll it.