I think they signed on for the GOR which admittedly doesn't mean much anymore..so was 2036. However they are obviously looking to have more control over which 5 ACC opponents they have scheduled in the future.
https://www.si.com/college/notredame/football/notre-dame-acc-partnership-changes With viewership being so important, this would definitely be an advantage for Miami, Clemson and FSU. However other than the 12 year Clemson/Notre Dame arrangement, I haven't heard anything else. It has also not been established that the Clemson/Notre Dame schedule would be considered one of the five ACC opponents Notre Dame is supposed to schedule each year.
As of now, here is what is scheduled for Notre Dame against ACC opponents:
2026 - @NC, Stanford, Miami, Boston College, SMU, @Syracuse.
2027 - GT, Wake, VT, @Clemson (3 open spots overall on their schedule)
2028 - @VT, Clemson, Boston College, MIami, @Pitt
2029 - GT, @NC State, @FSU, @Syracuse, Wake, @Clemson
6 games against ACC in 2030, 6 in 2031, 6 in 2032 (@GT is one), 6 in 2033, 5 in 2034, 6 in 2035, 6 in 2036 (@GT is one), 5 in 2037, 1 in 2038 (Clemson)
So it looks like they have 5 games when Clemson was part of the regular rotation and added a 6th game for Clemson in years they weren't part of the standard rotation. Since all of these games are already scheduled out, not sure what happens if teams leave the ACC or Notre Dame opts out of the ACC agreement. Interesting we are at Notre Dame in 2027 and 2029 but they are not at GT until 2032 and 2036. Definitely got screwed on that since home and home should have put one of the at Notre Games at Georgia Tech in 2027 or 2029 (likely 2029 since they played here in 2024).