I just installed ArcGIS Monitor 2025.1.1 and I have a couple of complaints and hopefully let others know.
1) When I go to My.esri.com to download the software, the Agent is labeled 2025.1.1 "ArcGIS Monitor Agent (Windows) 2025.1.1" but the ArcGIS Server exe's do not "ArcGIS Monitor Server (Windows)"
2) Then when I installed the ArcGIS Monitor Server,and go to Administration, Licensing. The license just says "25.0"
They make it a big deal in the documentation that the server and the agent need to match, but as far as I can tell there is no way to see what version of Monitor you are using.
When I put in a support ticket. the response I got was " I can confirm that ArcGIS Monitor displaying the license version as 2025.0 is expected behavior. Your environment is working fine and you can be rest assured that the update is not in jeopardy."
In Windows Programs they don't even match.

I will say that this version did fix my issue of 2025.0 with the Metrics units being wrong, so that made me happy.