Doctor Strange In The Multiverse Of Madness: All Illuminati Members Revealed

Captain Marvel is part of The Illuminati, but instead of Carol Danvers, it is Maria Rambeau - played by Lashana Lynch - who has the power.

Just like Carol Danvers, Rambeau's body glows in raw energy, presumably making her as powerful as she is. If so, then it is canon that Wanda Maximoff has the power to defeat Carol Danvers in a one-on-one fight.

Not with lack of effort because Captain Marvel is the Illuminati that made Wanda sweat the most, leading to an extended duel between the two before Wanda eventually gained the upper hand.

In a slightly different scenario, Captain Marvel could have ended up the victor. It can even be up for debate if Captain Marvel is dead by the end of the fight. It is possible she is just unconscious, as all we see is a hand going limp.