That's hard to measure without polling everyone individually. So far, through two games, attendance is still way down from the start of 2019 (MU's last season with full capacity.)
Here are the first two games of each season.
2019: West Virginia, 51,215 ... Missouri State, 56,620
2010: Central Michigan, 46,327 ... SEMO, 46,598
Through two games, that's a drop-off of about 14%. Now, maybe part of that drop-off is related to COVID concerns. Again, it's impossible to measure how much or how little that's impacted the crowd sizes. But if you measure fan interest solely on the the number butts in seats, through two games it's hard for me to say there's more interest in the program under Drinkwitz than there was to open Odom's final season.