Maybe I'm just lucky, but I've kept office hours for the totality of my career thus far, nearly 25 years. Most of my colleagues do as well. We all understand that we have lives outside of work, and that those lives take precedence. So long as we all get our shit done, nobody much cares about when you're clocked in and when you're not, outside of core hours (around 10 to 3 each day). If we want to turn off our phones, nobody much gives a shit so long as we're back on the chat the next day.