I've been working on remote teams for almost 20 years. The key to success is overcommunicating.
In other words--don't assume people have full context or share assumptions. Write emails that lay out assumptions explicitly and detail problems completely. As a manager I sometimes feel like a Habsburg bureaucrat buried in the Chancery offices sending painstaking messages to a far flung empire. Come to think of it, remote work is not that different.
While I agree that the key to success is _a lot_ of communication, there is much more to the management of remote teams than that: you should treat them like the on-site teams; communicate a lot but prefer video conferencing; try to give your remote teams the overall context; stick to as few means of communication as possible (if it's email, then stick to email).
What I also found is that I had been using coffee/caffeine to control certain aspects of my daily life, such as when to have focus and when to get tired/sleep. Without caffeine I was felt distracted by little things I was noticing or thinking of, made worse by the WFH situation.
I've gone back to consuming a limited amount (~1.5 cups) only between 10am and 6pm. I used to have none on weekends feeling a bit off to reset but eventually even this seemed pointless, so 10am-6pm every day has been working well.
If I didn't have a job where I had to hold a house of cards in my head daily for hours at a time, or have a distraction-free work area, I could probably give it up entirely. But then I don't think I would, I enjoy the flavour and ritual of coffee and frequently drink decaf espresso or americano even when out, which is actually pretty good if you find a good local bean roaster.
That! I lived on zero coffee for many years, however, it is much more difficult to do so once I became a father. I am consuming a maximum of 2 cups of coffee: first one around 10am, the second one in the afternoon but strictly before 5pm. I do that Monday-Friday and I either consume less or no coffee at all on weekend.
I also use decaf if I want to a coffee (as a drink, not as a boosting drug) and if I already consumed my daily 2 cups.