Right now there are 3 Utah WR in the NFL - Tim Patrick, DeVaughn Vele, Britain Covey
BYU has 1 (Puka Nacua), plus another just signed to the practice squad (Dax Milne last week to the Panthers)

When I was putting together the all-time NFL team from BYU (https://www.cougarboard.com/board/message.html?id=27889106), I remember being shocked at how weak the WR position ended up being. That was pre-Puka, and he obviously helps (potentially a LOT if he can stay healthy), but Utah has (especially pre-Puka) somehow put better/more WR into the NFL than BYU has. Which is frankly astounding to me, especially given how well BYU has done with QBs (both in college and at the next level).