As has been posted, there should be an audio feed.
I haven't seen the game even listed on a secondary market. Tickets are not available for walk-up purchase. I do wonder who got tickets, since they sold out in seconds and they aren't available for resale...maybe bots got all the tickets and can't resell them so the stands will be empty.

I expect it will be semi-competitive. Both coaches will use it to confirm line combinations and build team chemistry. It may only be a scrimmage, but it is still UNH. The coaches may not deem results important, but the players will.