The front end only receives the real password if embedded MQTT is used (otherwise it’s a fake password *********). And the ability to display it is also only available for an embedded broker.
The password is randomly generated as soon as you switch to « embedded broker » mode, but it can be modified from the configuration page, which also modifies it on mosquitto.
I chose to hide the password if it is not managed by Gladys (connection to an external server).
I may have missed something, but if it needs to be fixed, my PC is all hot!