DNGs are nominally raw/unprocessed images. What you’re used to seeing from a typical JPEG from a camera has at the least been demosaiced and lens-adjusted with some level of exposure-adjusted, white-balanced, contrast-enhanced, noise reduced, and sharpened.
Make no mistake, those DNGs do technically contain more information, but post-processing them to match/beat what comes out of cameras these days is a challenge. If you’re working with scenes/data where radiometric resolution is your absolute highest priority, I’d say they’re likely worth your trouble. If not I can’t think of a compelling argument to use them other than great skillset/workflow to sharpen just because.