Frank,
Since most golfers focus more on what they don't like that what is really good, I suspect having to look into the sun is the most brought up topic. Hence, the old adage of siting your clubhouse from 12 noon to 6 on a mythical clock face to avoid morning holes running east and afternoon holes running west to northwest.
Architects are also aware of using shadows to enhance the aesthetics, a
nd, for the most part, we count a lot on typical golf forms causing shadows at certain points, no matter what we do, in a random sort of fashion. Many do
consider sharper angles on features like bunkers, usually away from the sun to create them, generally west side on earlier holes, east side on later holes more likely to be played into the sun.
This even extends to things like bunker noses, which don't have to have a perfectly round shape. I once had a shaper ask me which side of the bunker nose did I want the crest? I gave him the answer above. You can enhance shadows a bit via carefully thought out design, but for me, its on the lower half of the list of problems to solve, i.e., I wouldn't build a bad bunker just to create good shadows. Some do. Von Hagge was often quoted that his shaping was aimed at creating shadows first, especially aimed at surrounding real estate if being paid by the developer.
Golfers playing from 10-2 don't get a lot of benefit either way.
I was wandering around my east Texas project the other day, and commented that still, after 50 years of golfing, there is nothing prettier than a golf course at dawn or dusk. The shadows, the effect of clumps of trees (cut through for fw, planted, etc.) that allow some shady areas and some sunny ones, etc. all make for a beautiful landscape. Yes, some golfers focused on score never seem to care about that, but I have to believe they feel it, even if not an expressed feeling.