There are fewer hours of work done at home now. The increase in leisure time reflects a decrease in total labor: income-earning labor, labor around the house, etc. Figures in [1] break it out a bit, although the years-reflected are a bit different than I used above. Search for "60.9" to find the relevant table.
[1]: https://eh.net/encyclopedia/hours-of-work-in-u-s-history/