I do not mind so much if camera turns on when I am about to join (or right before joining). The issue is "while joined in the call" I turned off the camera via

I do not mind so much if camera turns on when I am about to join (or right before joining). The issue is "while joined in the call" I turned off the camera via UI), which indicates to all users that I have muted the Video. However, it appears to be clear the camera feed is still on (e.g. indicated by green light / hardware). In other video call apps (e.g. Google Meet, Zoom), it turns off as expected. But in FB Messenger this is not the case and only turns off once you disconnect from call.