But when a single Raw image looks a bit 'flat' and too preoccupied with midtones, it is sometimes possible to set the 'exposure' of one copy to suit the highlights and the second version to darken the shadows.
Then, sometimes turning each layer into a smart object, it is possible by carefully editing masks on the layers to produce a composite version which includes the most suitable areas from each layer.
Not true HDR but, for example, creating a brighter foreground plus a darker sky which can give a more 'dramatic' effect. Perhaps a different descriptive term; something like Adjustment - Locally Enhanced (or ALE for short) might be a better description.