Quickly view a feature layer by right-clicking on it within the Contents pane and choosing "Display layer (by itself) in pop-up window". This would be more efficient than current methods:
(1) Hold the <CTRL> key and click the visibility tick box of a layer in the Contents pane. This will turn all layer visibility off. Then tick the visibility tick box of the layer you want to display. Issue with this method: after viewing the layer in isolation, the user then needs to "undo" recent visibility toggling actions to restore the visibility of the previously displayed layers. Not efficient.
(2) Add the layer to a new map, which would likely need deletion (to reduce clutter) after viewing. Not efficient.