With the present situation with NIL, transfer portal and no true NCAA football playoff system, if the G5 universities don't make a change soon, then college football as we know it will cease to exist.
P5 conferences really don't want to include G5 in the subjective playoff system, yet they want to continue to play the G5 universities to pad their win totals, though that doesn't always work to their favor. But even when a G5 university beats a P5 university, it doesn't do anything to help the G5 move up in the rankings, only lower the P5 rankings.
Solution:
There are five G5 conferences and five P5 conferences. Starting immediately, P5 schools can only schedule P5 schools, no longer can they they include a G5 school or lesser on their schedule. Let them fight amongst themselves and they can make up how they decide their champion at the end of the season.
G5 universities can only play G5 universities. But at the end of the season, have a true playoff system. Take the 5 conference champs with 5 at large bids decided by ranking and have a true G5 champion. Take away all bowl games.
NIL wouldn't hurt the G5's as much, nor the transfer portal. NCAA and the P5's would totally revamp how they consider the G5 universities. P5 universities would come crawling back and change the entire playoff system.
Just my thought and 2 cents.