I've heard this "Duke is always overhyped" narrative before, and I think it's off a bit.
We started KenPom off last year at #9: we finished the year at #5. Elite 8.
During the 2023 season, we started at #15 - and finished at #16. 2nd Round as a 5 seed.
In 2022, we began at #10 and finished at #6. Final Four... We've been doing about as well as we've been projected in recent years.
Also, Duke has gone further than UNC in 4 of the last 6 tournaments - and 5 of the last 7 if you count the 2020 season. And Duke has also finished ahead of UNC in the ACC standings in 4 of the past 7 seasons.