There are 130 total teams in FBS and as of today to my best count 75 teams have seen at least 1 game canceled due to either the B1G and Pac cancelling OOC games or smaller FCS schools.
The worst hit is BYU who right now does not have a valid game on their schedule until October 2 as all of their first 5 games have now been canceled (Utah, MSU, ASU, Minny & Stanford). That leaves them with just 7 games left
Hawaii has lost 4 games (Arizona, UCLA, Fordham and Oregon)
Notre Dame has lost 3 games (Wisc, Stanford, USC), plus the Navy game has been postponed
at least 15 other teams have lost 2 games already
Very soon, it will become untenable even should the other conferences want to play, that they could even hold a valid schedule
Let say the Sun Belt and MAC both decide its not in their interest to even play. If that becomes true then teams like Clemson, Kansas St, Kentucky (2 games), Mizzou (2 games), Bama (2 games and they have already lost 1), Pitt, UC (2 games), S Car, Ole Miss, Boise, Florida, NCST, Tenn, UGA, Arkansas etc would lose games or even more than they already have
in fact BYU would lose a 6th game or half their season. And ND would lose a 4th
Does not look promising at all