If I were asked what is the greatest change affecting workers/management in the past forty years I would say the amount of people working less than the full amount of weekly hours. Back in the 1960's the vast majority of people working worked a full week (40 hours). Laws about women working changed and they no longer had to give up work on marriage like they did up to the mid 1970's. Maternity/Paternity leaves were introduced giving more time off to deserving applicants. Job Sharing was introduced some years ago where you shared a week's work half/half with somebody else. Special Leave/ForceMajeure became relevant.
Great, if you can get what you want. But, in my last few years working (I'm retired over 12 months) there were petty squabbles from full-time workers taking up the slack from people not working full hours. Holiday dates became a problem. Special Leave applications became a problem.
Another thing to consider if working less than the fulltime hours is the availability of fulltime working later if required. Would your employer employ you for 37 hours if you had been doing the same job in say 30 hours?