1. If there's any truth to this (and there may not be), it is more likely he's being contacted by other NIL cooperatives, rather than schools. Big difference there. One is a violation of NCAA rules, the other is not (afaik).
2. Just because they're calling, that doesn't mean he's interested. Folks call me all the time trying to sell me stuff. I'm never interested. Nico can be in the same boat.
3. Doesn't make any sense for him to even consider alternatives, because (a) the only guy ahead of him on the roster is on his final year of eligibility, (b) Nico is the presumptive heir, and (c) he's at a school with a really savvy head coach who absolutely knows how to develop QBs. Also, Nico supposedly has one of the most lucrative NIL deals in all of college sports; little chance anyone is outbidding that by enough to make it worth the pain of a move.
Bottom line: this might have some element of truth to it. But even if it does, it's a big nothing burger. Feel free to push it aside and get on with the more important things in life and football.
Go Vols!