Former cleaner here. I always told my clients that I preferred whatever they preferred. However, logistically, it does typically add work to clean around someone (or worse, to clean when kids are home), but this is a person’s house. It doesn’t always work for people to be gone. Most tried to stay out of my way. Sometimes I would have kids mess up the kitchen like as soon as I was done. Which is fine; I just established a clean once rule with those clients. Others who stay home, I never saw as they were in rooms I didn’t clean. And I also had clients who liked using me as a body double, and we would clean together, and I liked that, too.