Anderson won a bronze medal in the big air event at the 2019 Winter X Games Aspen. She also participated the 2019 FIS Snowboard World Championships where she won a bronze medal and denounced the FIS President Gian-Franco Kasper in response to an article from Deadspin, where Kasper "denied the existence of climate change and spoke disparagingly about immigrants and lauded the ease of working with dictators to organize Olympic Games." Her winnings in that event were donated to Protect Our Winters and on her Instagram post, she urged her fellow competitors to do the same thing. In 2020, she won a gold medal in the slopestyle event at the 2020 Burton US Open and at the 2020 Winter X Games Aspen, where she became the most-medaled female competitor in the history of X Games.