[1][5][6] About six weeks later, at the 2021 Spanish Summer Open Championships in Las Palmas, Spain, Pigrée set a new French record in the 50 metre backstroke on 3 August with a time of 27.39 seconds.

[2][7] In the semifinals of the 50 metre backstroke at the 2021 European Short Course Championships, held at the Palace of Water Sports in Kazan, Russia, Pigrée swam a personal best time of 26.05 seconds, which advanced her to the final of the event ranked first.

[8] In the final of the event on 5 November, Pigrée won the silver medal in a time of 26.08 seconds, finishing behind Kira Toussaint of the Netherlands.

[19] On the fourth day, Pigrée swam a 26.39 in prelims heat seven of the 50 metre backstroke, tied Maaike de Waard of the Netherlands and both swimmers qualified for the semifinals ranking fifth.

[21] For the final of the 50 metre backstroke Pigrée set a new French record with a time of 25.96 and placed fourth overall, finishing one-tenth of a second behind bronze medalist Louise Hansson of Sweden.

[24] At the 2022 French National Championships in Limoges Métropole, Pigrée placed fourth in the 100 metre backstroke with a time of 1:01.22 seconds.

[25] The third day of competition, she achieved a 2022 World Aquatics Championships qualifying time of 27.72 seconds and second-place finish in the 50 metre backstroke.

[29] For the 2022 World Aquatics Championships, with pool swimming competition conducted at Danube Arena in Budapest, Hungary in June, Pigrée entered to compete in two individual events, the 100 metre backstroke, with an entry time of 59.88 seconds she achieved in December 2021 during the qualifying period, and the 50 metre backstroke, with an entry time of 27.41 seconds she achieved on 9 December 2021 and in the qualifying period.

[40][41][42] On the third day of the 2022 European Aquatics Championships, held in August in Rome, Italy, Pigrée ranked first in the prelims heats of the 50 metre backstroke with a time of 27.53 seconds and qualified for the semifinals.

[46][47] In the final, swimming in the outdoor pool at Foro Italico (Stadio Olimpico del Nuoto), she won the gold medal with a personal best and French record time of 27.27 seconds.

[52] In the preliminaries of the 100 metre backstroke the following day, she ranked tenth overall with a time of 1:01.24 and did not qualify for the semifinals as she was not one of the two fastest swimmers representing France.