Oh, for sure. It's already ramped up, month over month, just due to them napping less. I'm excited to see where it all takes us over the coming years. That said, a major factor in why I work full-time remote today is because I wanted to take control of my health and use my lunch hour to exercise. I don't plan on ever giving that up, but I know that's optimistic. I'd happily go back to S&S 6 days a week if that's where my life took me (again).
For what it's worth, that means that you're actually at an easier phase than you will be when the kids get older. Infants are time-consuming in many ways, but they also sleep a lot and have few external needs of their own.
When your kids stopping napping and start acquiring their own friends and activities, the time commitment goes up a lot, especially when they are still too young to do much for themselves.
Elementary age sort of plateaus: the amount of activities goes up, but they can take care of more of their own maintainance too. I don't know what middle school is like yet, but my hunch is that the time commitment starts going down when they become old enough to go to activities on their own.