I don't know about everyone else, but my evenings are far from entirely "personal time." Chores take up most of my evenings, so really I get maybe 1-2hr of personal time on work nights. People with kids who do sports probably get next to zero personal time, beyond maybe vegging out on YT/FB for an hour before bed.
Weekends are the only days where I generally "plan" to do things, and even then, Sundays are half reserved for chores like mowing/shopping. Having an additional weekend day that I can plan for hobbies would be amazing. For me, it's honestly akin to doubling my free time.
I think you might be surprised to see how all that "extra" personal time can get absorbed by chores as well, ala Parkinson's law[1]. Chores are personal time unfortunately.
Weekends are the only days where I generally "plan" to do things, and even then, Sundays are half reserved for chores like mowing/shopping. Having an additional weekend day that I can plan for hobbies would be amazing. For me, it's honestly akin to doubling my free time.