Decades ago, I was a dedicated student of various Native American styles of hunting, survival training, trapping, scouting, etc, etc, so much, I even tried hunting with spears (lances). I followed various teachings on washing clothes with unscented types of soaps, natural and otherwise, rinsing those washed clothes with backing soda added, outside air dried, and then taking those clothes and placing them in unscented garbage bags with pine needle, cedar branches and woodland dirt/leaves rolled in cloth and included.
The morning of the hunt, I would rise early, shower with natural soap, use liberal amounts of baking soda as a body deodorant, put on clean clothes and if not near my home, drive to the hunting area and then put on my hunting clothes from the sealed garbage bags and boots similarly treated.
Avoiding raising any sweat during my slow walk to my stand or ground blind, I would enjoy the starry morning and night sounds in the woods or other. Once I settled in to my hunt and watched the slowly reddening morning sky, often, I would be amazed how close some animals would come to my body, and some climbing on me, and seemingly unaware I was there. There were times I had whitetail does walk down a trail so close I would reach out and poke them with my weapon, and one time, I feel asleep in the warm early afternoon sun, and awoke to the sound of a breaking twig. As I slowly raised my eyes from behind my camo net mask, there was a doe deer looking at me and sniffing from about three feet away. What a sight that was!
Those were some of my early years of hunting, and as time went by, I began to lose interest in taking such extreme scent reduction methods, but even to this day for certain types of closer woods/stand/blind hunting for some game, I do treat my clothes the same as then and avoid certain types of smelly foods before the hunt.
More open country hunts, I follow basic scent reduction and wind discipline.