I've planted evergreens to create dark, shady cover - but only a smaller % of it is tall enough yet to be "overhead cover". I HAVE noticed deer using pines, spruce, hemlock, and balsam fir to travel from one area of open hardwoods to another. I've been in tree stands where the deer had no idea I was there and watched them use the cover and dark shade of these evergreens, rather than walk through open, leafless trees. I've watched deer use older, mature hemlocks to walk under as they travelled through otherwise open hardwoods in a "connect-the-dots" kind of pattern. This was in morning daylight as they worked their way to their bedding area.
Around my camp, bucks especially will use pines, spruce, and hemlocks to hang in while scent-checking/visually-checking the food plots and openings. Does just seem to walk out anywhere, but the bucks like those darker areas to " check things out " first. Rub lines coming from bedding areas tell the tale. FWIW.