I guess it happens more in high school (non-football sports) where a team may not get a specific rival on their schedule and will schedule them as non-conference, or in basketball where maybe a conference will schedule two teams to a conference game and then the schools will schedule a second game as a non-conference game.
I don't think I've ever heard of that happening in college sports or at least haven't paid attention to it.
Because conference schedules were never absolutely stupid until literally 2024
The good news is, the ACC fiasco may incentivize a system where conferences want their best teams to win the conference via a building a schedule that funnels the cream to the top.
This is done via round robins.
Easy way to schedule the big ten.
3 groups of 6.
Play 5 in your 6 plus 4 randoms.
This funnels teams.
Change the groups of 6 every two years.
In 6 years you play every team a minimum of home and home.
You can make sure the current locked rivals are all always in the same group of 6 or are always selected “randomly”
Another way to do it is to have two groups of 9.
Play your group plus one random. The random could be non random to save a rivalry
People are anti divisions. But you can have scheduling groups even without divisions.