What font did Billie Eilish use?

Excuse me, I was wondering if you could shed some light on a question that's been on my mind lately. Specifically, I'm curious about the font that Billie Eilish has been using in her recent work. As a fan and a designer, I find her aesthetic choices quite intriguing and would love to know more about the typography she favors. Do you happen to know what font Billie Eilish uses in her projects? I'd greatly appreciate any insights you might have on the matter.