I never steer with the outboard
If you have a boat where it is convenient to steer with the outboard.... then the choice is based on your own senses. However, if the OB is inconveniently located, or has no tiller, then you must develop a rudder steering technique for your own safety and conveninence.
I have an electrics start, remote controlled Tohatsu. There is no tiller handle. It is located in a motor well, covered by a hatch. Therefore, I always steer with the boat's rudder, never with the motor. If you are in a tight space, you can use the same manuevering techniques you do with an inboard. That is: using the prop walk and gear shifting between forward and reverse to spin the boat on it's keel.
Find a safe area to practice. Experience the prop's tendency to pull the boat to one side in reverse, you can magnify the action and slow moving in reverse by pushing the tiller in the same direction. When the boat's rear starts swinging to the side, shift to forward to let the rudder continue the turn. When the boat's motion starts to move forward, shift back to reverse, now the prop walk will take over ..... by alternating this activity the boat will practically turn inside it's own length. Note: the direction of the turn is defined by the direction the prop walk pulls the stern in reverse.
When backing straight out of a slip, the prop walk will pull the boat to the side... so... the technique I find useful is to simply get the boat moving with a short blast in reverse, then drop down to neutral and steer with the rudder while the boat's momentum carries me out into the fairway. For longer distances or against the wind, I use short blasts to keep the boat moving.
Therefore, you can use the maximize prop walk to benefit a tight maneuver, or you can minimize prop walk by pulsing the motor allowing you to maintain momentum and steer with the rudder.