Some men wear tube socks that bind the leg with time.
Standing, and some swelling is expectable.

My son had lots of trouble with his socks. They left deep ridges in his legs at the end of the day. He looked around and found relaxed fit ones, or slightly larger ones, and now he has no trouble. He had alot of PN type pain, from the binding in the lower leg. He was not overweight or have big legs either.

Some of those spots appeared to be at the hair follicles and
others not. When the follicles are red, that is called folliculitis, and is a sign of poor skin integrity. Often using flax oil and fish oil will clear it up, as the skin gets better and resists bacteria which tend to enter the tiny cracks that open when nutrients are poor.

When diagnosis is elusive testing with various ointments and watching the response may be helpful. I'd start with HC cream and see if they clear faster. Next I'd try an antifungal like Lamisil. Sometimes sweat glands get blocked and they can turn skin red too. Whatever it is, doesn't look menacing yet.