The way these typically work (and how I am doing it) is that the first Friday is 8 hours, the second Friday is 0 hours, and all other days are 9 hours. I’ve found it to be extremely useful for the reasons mentioned in the article. It gives everyone a weekday off regularly to get weekday-requiring things done like personal appointments. It also makes it easy to take long weekend trips more often. Both of these are aligned in a way that lets the remaining weekdays more productive, since people have their time off aligned.

This type of schedule is called a 9/80 and you work 80 hours every 2 work weeks.

Your Fridays "on" you work 8 hours instead of 9. And you get every other Friday off.

At my company, we have the option between the standard 5x8, the 9/80, and the 4x10 schedules. Surprisingly (at least to me), the 9/80 is by far the most popular (the 4x10 being the 2nd most popular and the standard schedule being the rarest option).