I just created groups for Cacti, LibreNMS and Observium users. You should be able to join them in the Groups option in your profile (when you click on your user icon in the top menu). When you do, the relevant icon will show up by your name, so we can have fewer confusing conversations where everyone assumes you are using the same tools.
(and obviously let me know if you are using something else and I’ll do the same for that)