Stepping backwards to push off your back foot. Good or bad move in your opinion

Questionable Jokic body movement

I am very new NBA fan tonight was my very first NBA game Quick question what it this move called

SGA attacks Wemby and hits the stepback

Chet gestures at Wemby's foot then steps on it to prevent him from getting an offensive rebound during a free throw

Funakistats Steven Adams explaining his offensive rebounding strategy to maximise available angles

Jaylen Brown gets upset seeing PG do a push-off Everybody does this but when it's me it's an offensive foul They clearly had an agenda I don't know if it's because I pissed the refs off and called them out Some bullshit I've been doing it all regular season and you call that shit on me always