Study is published by a staffing firm, who surveyed around 1000 people. It seems like the people who would respond to a staffing firm's survey might not be fully representative of the broader working population.

I did not expect to enjoy working from home, but I thoroughly do. I feel like I can be almost as effective, but I sure wouldn't quit over a return to the office. (And I sure wouldn't be reachable by a staffing firm to be surveyed.)