Old guy stories- Back in my darkroom days, black and white paper came in a plethora of surface finishes. Everything from sandpaper-like and canvas-like, to the well known glossy "F" surface that could be dried to a mirror-like finish on chrome plates. The maximum tonal range was always with the glossy finish because the blacks were blacker. Any other finish scatters light and the black isn't as black. If the paper used an off-white base, usually cream colored, that reduced tonal range even more. A canvas paper with a warm cream colored base was great for portraits and large prints, but a poor choice for most other things. My technical knowledge of color isn't as good, but no doubt saturation is affected the same way. Matte and many "fine art" papers won't produce the gamut range that a high gloss paper will. OTOH, it's horses for courses and you choose the paper for the effect you want, just being aware there are always trade-offs.