With Percona Monitoring and Management (PMM) 2.10.0, Percona is releasing a new MongoDB exporter for Prometheus. It is a complete rewrite from scratch with a totally new approach to collect and expose metrics from MongoDB diagnostic commands. The MongoDB exporter in the 0.11.x branch exposes only a static list of handpicked metrics with custom names [&]

https://www.percona.com/blog/2020/09/22/new-mongodb-exporter-released-with-percona-monitoring-and-management-2-10-0/