This is what I encourage my staff to do. We have a company-wide bagel breakfast in the morning, and then no more meetings. We also skip our daily “async slack stand-up” on Fridays. My expectation for the day is that you prioritize personal development, long-term planning, or just “deck clearing” if you’ve had a long week or desire something less mentally demanding for the day. Obviously, thing happen that can interfere with the ideal, but it’s pretty rare and, when it happens, I make it a point to figure out if there’s a way to avoid it going forward.

What we don’t do, is “no deploy Fridays”. We deploy all the time, and maybe somebody wants to do some minor bug or light UI cleanup. I’m certainly not going to stop them. Requiring an “off-day” for deployments is a major red flag for me.