For me. Disc golf is counter productive exercise. It takes just enough time and physical effort out if me that I don't feel like going to the gym or going for an actual run. It doesn't keep me thin or help me out in conditioning in any way.
It's probably a good after workout or post run activity. I've noticed that when all I do is disc golf I don't make the gym or get any beneficial exercise and I actually gain weight or become soft.
I also eat like a pig so my exercise needs are probably moreso than most
My opinion disc golf isn't really great exercise. Just take a look at the people who play the sport on your home course for proof of that lol