[1] As a senior, Brewer was named the Associated Press Texas Player of the Year after setting a national high school record with a 77.4% completion rate on 340 pass attempts for 3,908 yards and 54 touchdowns against three interceptions and ran for 746 yards and nine touchdowns on 88 attempts in a season in which Lake Travis won the Class 6A State Championship.
He started the final four games of the season and was named the Big 12 Conference co-Offensive Freshman of the Year after completing 68.1% of his passes for 1,562 yards with 11 touchdowns and four interceptions.
[8] Brewer returned to start the 2020 Sugar Bowl against Georgia and completed 24-of-41 passes for 211 yards, one touchdown and one interception before again leaving the game to injury after taking a late hit.
[11] After graduating from Baylor, Brewer opted to enter the transfer portal and utilize the extra year of eligibility granted to college athletes who played in the 2020 season due to the coronavirus pandemic.
[14] Brewer started the first three games of the season before leaving the program after he was benched during a 33–31 triple-overtime loss to San Diego State.