Kiibus has represented Estonia at the European and World championships and finished twenty-first at the 2022 Winter Olympics.

[7] With pandemic-related travel restrictions in place, Kiibus started off her season at a 2020 CS Nebelhorn Trophy attended only by skaters training in Europe.

[9] Shortly afterward, she won the silver medal at the 2020 CS Budapest Trophy, regarding her performance there as an improvement over Nebelhorn despite the lower ordinal.

[11] Kiibus was one of several skaters to contract COVID-19 at the Rostelecom Cup, as a result of which she took weeks to recover, and indicated at the Estonian Championships that mental recovery would take longer.

[13] Following her victory at the national championships, Kiibus competed internationally again at the Tallink Hotels Cup, winning her third gold medal.

She earned new personal bests in the free program and overall score, breaking 200 points for the first time in her career.

She enjoyed less success at her two subsequent events, first finishing seventeenth at the 2021 CS Cup of Austria, notably with a score nearly forty points behind domestic rival Niina Petrõkina, who won the bronze medal.

[18] Petrõkina again bested Kiibus at the 2021 Estonian Championships, where she finished second overall with a score of 183.77, almost 29 points out of the gold medal position.

Kiibus' coach Anna Levandi said that while the season had been difficult for her, she was preparing to show her best in Beijing.

[19] Competing at the 2022 Winter Olympics in the women's event, Kiibus placed twenty-first in the short program after falling on her solo jump attempt.

[17] In February 2023, Kiibus was diagnosed with stress fractures in the tibias of both her legs, as a result of which she stopped training for two months and began gradually working her way back into athletic form.

[17] She ended the season by winning silver and gold at the 2024 Maria Olszewska Memorial and 2024 Coupe du Printemps, respectively.

[23] Kiibus began the season by competing on the 2024–25 ISU Challenger Series, finishing nineteenth at the 2024 Budapest Trophy.