Charrette-Labadie, then a 22-year-old, emerged as one of the early spokesperson in the "yellow vests" (French: gilets jaunes) movement.
[7] During her time as a spokesperson, Charrette-Labadie was contacted constantly by people in the movement asking for updates as to what had been accomplished and by members of the media seeking comment.
[4] Her participation was criticized by others in the movement, including local Cana leader Christian Lapauze who said they were not consulted about any demands and the representatives had no legitimacy.
[4][6] On 27 November 2018, she was one of six yellow vests activists to participate in a LCI program called "The Great Explanation" (French: La Grande explication).
A conspiracy theory misidentified her, suggesting that Macron, through a female friend, had infiltrated the highest levels of the yellow vest movement.
[3] On 29 November 2018, she was invited by France's Prime Minister's office to participate in a meeting with other spokespeople at Matignon.
[10][16] She would stay at work between shifts on the same day in order to avoid the extra fuel expense of returning home.