I had to look it up and apparently there was another PwO
“Voss will be the first Gophers player to win Minnesota Mr. Football since Cade Osterman took home the honor in 2022 with Elk River. He joined the Gophers as a preferred walk-on (PWO), but never appeared in a snap before transferring to North Dakota State after only one season in the Twin Cities. Owatonna running back Jason Williamson was the last Mr. Football to sign with the Gophers as a scholarship player in 2018, but a multitude of injuries cut his career short.”
Jeff jones and Philip Nelson are others mentioned.