I am a little surprised by the Michigan - Notre Dame line. Last I checked Michigan was now favored by 2 points. It moved a lot over the offseason. I think it started with Notre Dame as a 6 point favorite. Notre Dame lost a lot on offense, but they are at home and they return 9 or so defensive starters.
I would typically say Michigan is getting the typical large fanbase, helmet school inflated expectation bump in the betting line, but Notre Dame usually gets that as well.