What they linked cited sources well. Quote from the original source study.
"Housework was defined as “core chores,” or routine housework that people generally do not enjoy doing such as washing dishes, laundry, vacuuming floors and dusting … Routine housework, like cooking dinner or making beds, was captured … . Other activities such as home repairs, mowing the lawn, and shoveling snow were not in the study. Items such as gardening are usually viewed as more enjoyable; the focus here is on core housework."
Obviously completely BS biased sexist study. It doesn't get more blatant than that.
When I was a kid in Florida, my sisters stayed inside learning how to knit while watching tv in the AC while I was outside in 95º Florida Humidity heat, helping my grandfather repair and maintain his home.