When you talk about coops, there is a distinction between a consumer coop and a worker coop. A consumer coop is generally where consumers band together to get better prices on consuming some product or group of products. A worker coop is where workers have ownership and make business decisions together. There are actually other coops too - e.g. farming coops are generally capital equipment sharing arrangements - think sharing ownership of the processing center for some crop. (Also ESOP worker coops - but I would say they generally are very weak on workers making significant decisions).

REI is a consumer coop. At least some of their employees are actually unionized. https://www.motherjones.com/politics/2022/02/rei-coop-union-...