I’m in twice a week meetings and have used zoom since the inception of the meetings via zoom in March 020.  The controls are simple, Alt A to mute or unmute yourself, Alt V to turn on or off your video etc. I have no idea about teams as I’ve either used facetime, skype or Zoom.  Now Facetime or zoom is my primary source of internet communication when I cannot call them without incurring long distance charges on my iPhone.  .