Friess made her international debut at the 2016 Élite Gym Massilia where she finished fourth with her team and twenty-fourth in the all-around.

[7] She helped the French team win the silver medal behind Italy at the FIT Challenge and placed eleventh in the all-around.

[9] Friess returned to competition in May at the French Championships where she competed on the vault, uneven bars, and floor exercise but did not qualify for any finals.

[18] She then competed at the Worms Friendly where the French team finished third behind Germany and Belgium, and she won the silver medal in the all-around behind Elisabeth Seitz.

[19] She was named to the World Championships team alongside Marine Boyer, Lorette Charpy, Melanie de Jesus dos Santos, and Claire Pontlevoy.

Individually, Friess won the silver medal in the all-around behind Mélanie de Jesus dos Santos, and she placed fifth on the uneven bars and eighth on the balance beam.

[28] On 14 June, she was selected to represent France at the 2020 Summer Olympics alongside Mélanie de Jesus dos Santos, Marine Boyer, and Carolann Héduit.

During the finals, she won three gold medals on vault, uneven bars and floor exercise, and also picked up a bronze on balance beam.

[32] In October Friess was named to the team to compete at the World Championships in Liverpool alongside Marine Boyer, Mélanie de Jesus dos Santos, Coline Devillard, and Carolann Héduit.