An eventual youth academy graduate of Paris Saint-Germain, Folquet was selected for the PSG squad by coach Olivier Echouafni in each of the club's Champions League quarter-final and semi-final legs in the spring of 2021 but was an unused substitute.
On 30 January 2023, Folquet moved to Fleury on loan after making just six appearances for new coach Gérard Prêcheur in the first half of the 2022–23 season.
[8] She graduated to the U19 team for a single appearance against Iceland in 2021 before making her U20 debut (in a friendly technically classed at the U23 level by FIFA) against Sweden on 8 April 2022.
[9][10] In June 2022, Folquet was part of the squad that represented France at the Sud Ladies Cup where the team finished as runners-up.
[11] On 15 August 2022, Folquet scored her first goals for France's youth teams with a brace against Canada at the U-20 Women's World Cup in Costa Rica.