In ArcGIS Dektop (ArcMap) we have the continuous pan/zoom tool which uses the left mouse button to zoom and the right mouse button to pan. In ArcGIS Pro the default "Explore" tool swaps these functions so a left click pans and right click zooms. Please add the option to reverse the mouse button in Pro so that users can have the same navigation experience in ArcMap and Pro. This will allow users to easily use both platforms side-by-side.
It is these small usability issues that will hamper the adoption of Pro by the core day-today GIS professionals.