Blurr a moving object?

I google searched for "blur a moving object in premiere elements" and got plenty of choices.   

One very good method is described in Steve Grissetti's tutorial:   https://www.youtube.com/watch?v=JCQn-xAyo-U

Another I liked was: https://filmora.wondershare.com/video-editing-tips/premiere-elements-how-to-blur-face.html#:~:text=In%20the%20'Power%20Tool'%20window,movement%20and%20blur%20its%20face.