On my tubed bike, other than 1 or 2 flats in the last 5 years, these tires have required 0 maintenance. Even after dusting the bike off from the winter, they pump right up and are ready to go.
My tubeless tires are a constant source of headache. They are constantly going flat, sometimes weekly, requiring more sealant, stuck valve cores, etc.
Overall, I'd say my tubeless tires require monthly maintenance, while my tubed tires have basically never required any thought at all. What am I missing here?