Two scenarios but both related to having kids.

My brother in law works at Deloitte in Australia and is taking Fridays off for most of the rest of the year using his paternity leave. Sounded like they were pretty supportive but may have to keep an eye on email during that day...

My sister is at a big bank and does 4 days a week but as she describes it "instead of doing 5 days a week and 60 hours, I do 4 days a week and 40 hours". She's still on calls and definitely on email on that "day off".