Before the portal opened, I did a comparison of BYU portal needs vs Utah portal needs. And there's certainly a few BYU needs (OL, DL, TE, CB) but the roster was fairly intact compared to other teams.

https://www.cougarboard.com/board/message.html?id=34387881
(Make sure to also click the link in that post which looks at the BYU 2 deep)

Also note that OL and DL are recognized as being the toughest spot to upgrade in the portal and there really was never a high likelihood of big splashes in the BYU portal.