The only thing I could find was a statista link that claims to show US gamer’s proclivities toward preordering in 2016 based on a survey of 1560 people (https://www.statista.com/statistics/662626/game-pre-order-frequency-us-gamers/)
Everything other result seemed to be random news articles about topics tangentially related to preordering video games.
YESSS Loop Hero is so gooooood