I live in a townhouse, an interior one, and the bathrooms are all interior rooms so no windows. Actually, the bathrooms are the only rooms that are interior with no windows. It doesn’t bother me.
I like having windows in a bathroom for natural light, not for fresh air though. Due to where I live, windows can really only be open for maybe a month out of the entire year due to the heat/humidity.
That said, I do not like windows in the shower. My bathroom growing up had one and even though it had blinds on it, I irrationally thought people could see in so not a fan.
I don’t think it would he odd to have some bathrooms with windows and some without, do what you like!