Talented people appear quickly in the age of the internet, you don’t have to bring up conspiracies
(especially when said conspiracy is already disproportionately used against women)

Plus she’s been around since 2015

She was very niche, then she was the opener on Olivia Rodrigo’s Guts tour starting in February (they have the same Producer). If you look her up on Google Trends, that’s when interest really took off and she started being seen everywhere, as well as continuing her own tour (she had been touring in the fall beforehand).

Her full album was out nearly six months before the Guts tour, her old label dropped her after the Pink Pony Club single. I think she just got in a good position, and has a great, fun sound that people like.