It's not a black-and-white situation. Wanda Maximoff has moments in the comics where her actions could be seen as villainous, but there are also times when she's on the side of good. It all depends on the specific story and her character development at that point.
Sometimes she is portrayed as a villain, depending on the storyline and context.
Chapter 455, "She is Entirely My Weakness", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from The marathon-style competition ultimately ended with Shang Shuyue...
Chapter 712, "This is definitely not reliable!", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event.
Chapter 370, "Jiang Li, Thank You for Coming to Save Me", is the clearest early answer because it turns Mr's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He Yun's trial took place a week later, as scheduled.
Chapter 310, "Sister, Eat More", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 603, "Met Uncle Beggar", is the clearest early answer because it turns Jiang Mingyu's situation into a concrete plot event.
Chapter 570, "A Simple Auto-Attack Baits Out an Ultimate from the Enemy", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on What the heck is that?" "?? and ending on It was impossible for Jiang Li not to know;
Chapter 540, "I am the Young Master's Nanny", is the clearest early answer because it turns Brother Pei's situation into a concrete plot event.
Chapter 645, "Without Luck, You Are Nothing!", is the clearest early answer because it turns Shang Zhenhe's situation into a concrete plot event. Early on, Shang Shaojing furrowed his brow and fished out two banknotes from....
Chapter 574, "They Are Ill-fated", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Sister Li really gave it to her!" "No wonder she's my Sister Li,...
Chapter 687, "How Did She Die Again?", is the clearest early answer because it turns Black Hole's situation into a concrete plot event. Early on, In the process of pursuing the Protagonist Group, she gradually came.... By the end, I'm busy here;