[4] Bărbosu opened her season at the domestic Petrom Cup in June, winning gold in the all-around ahead of Sabrina Voinea and Maria Ceplinschi.

At the senior Championships in September, Bărbosu won bronze in the all-around and on floor, while also placing sixth on vault and balance beam and seventh on uneven bars.

The following month, at the Romanian Individual Championships, she nearly swept the Espoir division, winning titles in the all-around and on every event but vault, where she won silver behind Voinea.

[5] Bărbosu made her junior international debut in November at the Swiss Cup in Wallisellen, where she won gold with the Romanian team and individually in the all-around.

[6] Bărbosu competed at the Horizon Cup in Thessaloniki, Greece the following week, where she won the Espoir 2006 all-around title after posting the top score on every event but uneven bars.

At the 2020 Romanian Championships, Bărbosu won the silver medal behind Silviana Sfiringu and ahead of Ioana Stănciulescu to finish as the highest-placing junior in the combined all-around final.

As a result, Bărbosu was named to the nominative team for the 2020 European Junior Championships alongside Iulia Trestianu, Maria Ceplinschi, Andreea Preda, and Luiza Popa.

[9] Individually, she won the all-around title by over 4 points ahead of teammate Ceplinschi and Daniela Batrona of Ukraine and qualified first into all four of the event finals.

[12] In November, she competed at the Top Gym Tournament in Belgium, where she won the all-around, and also picked up the gold medals in the uneven bars and balance beam finals.

[14] She then competed at the Osijek World Challenge Cup, where she won the gold medal on floor exercise, and took the bronze on balance beam behind Pauline Schäfer and Ana Đerek.

[17] In October Bărbosu competed at the Mersin Challenge Cup where she won gold on uneven bars, balance beam, and floor exercise.

Later in the year, Bărbosu won her second Romanian national title in the all-around as well as a gold medal on the uneven bars and a fourth-place finish on the balance beam.

[19] Subsequently, Bărbosu appealed to the Court of Arbitration for Sport (CAS) that Chiles' inquiry was filed twenty-four seconds[20] after the one-minute deadline, and therefore should not have been reviewed in the first place.

On August 10, five days after the final, the CAS found that Chiles' inquiry was filed beyond the 1-minute deadline specified in article 8.5 of FIG 2024 Technical Regulations (specifically 1 minute and 4 seconds).