Citadel made the most money from this debacle by a huge margin. From earlier last Friday, algos basically ran the stock. Retail and r/wsb make for entertaining headlines. But most people in the business knew this squeeze (perhaps not to this extent) was coming this week.
A MM expects to make pennies for selling an option.
If there is a sufficient squeeze, and GME doesn't issue new shares, each of those options (especially those purchased earlier) will result in tens or hundreds of dollars of profit to the holder.
What's your math for asserting that Citadel is making "the most money" "by a huge margin"?