In my experience it leads to less vacation for most workers. But some people take advantage of it without raising suspicion.

The average worker has no baseline for what amount is appropriate. They think they are always too busy. Their boss thinks they are too busy.

But some people get more by being untransparent. If I’m going on a fishing trip, I don’t tell anyone. If something comes up, “I’m out of the office, I can meet when I get back or do a call.” Nobody knows if I’m traveling for work or vacation.