It’s possible to interview at a company and decide that it’s not for you, and frankly I wish I’d done that more often over the years. I used to be more inclined to ignore the little voice saying “aren’t these warning signs?”, accepted the offer anyway, and quickly realized the little voice had absolutely been right.
Oh, nothing wrong with going with your gut and paying attention to the warning signs. But, "I briefly looked at these people from afar and immediately concluded they all only pretend to work and never accomplish anything" is just ridiculously arrogant.