No, Duratrac is a snow-flake rated all-terrain tire that GY markets as "A workhorse tire for rugged off-road terrain — including snow — that still offers a quieter ride on paved roads. The bold aggressive tread design is great for work truck towing and hauling.".
If you look online, there are a ton of positive reviews for this tire, and I have personally been running it for the last 4 or 5 years on all my trucks year around. I find it to provide excellent traction in all conditions that I have encountered, and am even able to leave my truck in 2wd most of the time in the winter. In heavy snowfall or on severely icy roads in 4wd, I find myself pretty much doing circles around most other people struggling to get traction. And while I do not have any experience with dedicated winter tires, the GY DT has never left me wanting more traction. The only down side I've found is that it is a tad bit louder on smooth pavement, and does wear a bit faster.
As for the KO2, it is also a snow-flake rated (https://www.tires-easy.com/blog/mountainsnowflake-symbol/) and I personally think it outperforms most other tires. That said, I switched to the Duratrac within the first 1000 miles of owning my truck if that tells you anything...
Yep. It tells me a lot. Especially with you being from Michigan. I know you get brutal snow storms up there. I went 1 winter with the stock tires on my raptor last year and I was not impressed, they are great on pavement, gravel, and rocks, but not in snow/ice.