This request is pretty basic, I don’t think it needs more explanations.
As a Dynamics user I regularly want to go back to the previous page I was on. Which at the moment requires to use twice the “Back” shortcut or left click then back (which is not available in Dynamics by the way).
So in order to make the app more user friendly, it will be great to have a previous and a next buttons, like on any web browser. And I am pretty sure that Dynamics is not the only webappp where users would like to see those buttons.