It's not possible to add Postgres with pg_stat_monitor extension for pmm2-client < 2.41.2

STR:

1. Start PMM server 2.41.2

2. Install and configure pmm2-client 2.41.1

3. Enable pg_stat_monitor extension on Postgres

4. Add Postgres with pg_stat_monitor as query source: pmm-admin add postgresql --query-source=pgstatmonitor

Actual result: pg_stat_statements agent is started instead of pg_stat_monitor agent. In logs:
Could not to detect the pg_stat_monitor extension on your system. Falling back to the pg_stat_statements

Expected result: pg_stat_monitor agent is started