The first feature is available both on the browser version and mobile (click maximize button to enter a split view). The second is more or less possible on the

The first feature is available both on the browser version and mobile (click maximize button to enter a split view). The second is more or less possible on the mobile app since recent versions, if you access the street view from the route steps. They have worked in improving this UI very recently, a few months ago it was unusable and now it's pretty intuitive. The third one is also available on mobile, with the Live view feature that appears during walking routes.