In January 2020, Kiibus first competed at the 2020 Winter Youth Olympics, placing fourteenth. She then made her debut at the European Championships, placing eleventh in the short program. Fifth in the free skate with a new personal best, she rose to seventh place overall. Kiibus said afterward that it was "such an experience. I felt so good and I skated with my heart." She was assigned to compete at the World Championships in Montreal, but those were cancelled as a result of the coronavirus pandemic.