I'm a college football stats junkie, but honestly, there is so, so little information or predictive value to college stats translating to the NFL. So, so many factors at play, including level of competition, coaching, etc.
Look at a guy like Justin Fields or Bryce Young, etc. I mean, the starting QB for the Patriots the last 3 years threw for 4,500 yards, 77% completion rate, 11.2 Y/A, 40tds and 4 ints, rating of 203.1 his senior year.
Mahomes threw for 5,050 yards on only 65%, 41tds, 10ints and a rating of 157.0.
The GOAT in college, 4,700 yards, 30tds, 17 ints, a rating of 134.9 and he completed 62% of his passes.
Peyton Manning's senior year, 3,800 yards, 60% completion rate, 36td, 11int, 147.7 rating.
Herbert's senior year, 66%, 3,400 yards, 32tds, 6ints, 156.8 rating
Josh Allen over 2 seasons threw for 5,000 yards, an awful 56.2 comp%, 44tds, 21ints, 137.7 rating.
There's a lot of Baker Mayfields that light up the college football world, but don't translate to be consistently great in the NFL, and then there's guys for a myriad of reasons, that don't put up obscene numbers in college that turn into the best of the best.
My only exceptions are guys from small schools. Those guys like Cooper Kupp, Danny Woodhead, Chase Edmonds, Joe Dudek (wink), etc. better put up fucking obscene numbers given the competition they faced.
Edit: For the record, given all of the teams switching conferences recently, I think it's going to be harder than ever for scouting guys to figure out the level of competition these guys are playing against. I think it'll take a few years for that to shake out. Except the SEC, because the SEC is still and will still be stacked, along with top of the Big 10.