I fly from a busy glider and training aerodrome. When I was learning to fly, I found it useful when there was 3 aircraft plus gliders and tug in the circuit to call downwind (left or right as aerodrome has some right hand circuits) and final, as it gave good situational awareness to the training pilots. For me, I would say the radio call for the other legs but not transmit to embed the circuit patterns into my head. But yes if you call each leg that is too much.
Worth noting the requirements to for inbound and joining the circuit radio calls.
Also note, if in doubt, use the radio too as I had a near miss just before christmas and the radio was what avoid a potential disaster. It is easy to say on the ground to other pilots you use the radio too much. But if it avoids a disaster, then I say use it.