In the video you are not selecting the view, before you do the right-click and Edit View.
The view is just highlighted because you are hovering on it with the mouse.
That's why Fusion asks to select the view. If, at that point you click on the view, the dialog for changing the orientation will show up.
Otherwise, you really need to click on the view for selecting it first, and you should see a little square in the middle of the view that confirm you have done it.
After that, if you right-click and Edit View, you will see the dialog popping up.
See also the video below that hopefully clarify it more.
https://autode.sk/2BJhBIY
I hope it helps,
Regards,
Alessandro Gasso
Fusion 360 – Simulation/Generative Design Adoption Specialist
Autodesk, Inc.