Zero surprise here. All you have to look at is who Twitter chooses to shadow-ban.
“One strategy is to shadow ban so you have ultimate control. The idea of a shadow ban is you ban someone, but they don’t know they’ve been banned because they keep posting…but no one sees their content.”
— Abhinav Vadrevu, former Twitter software engineer.
https://www.oann.com/poll-majority-of-twitter-users-are-liberal/