Her grift is the exact same one as the Honey extension from the megalag video - https://www.youtube.com/watch?v=vc4yL3YTwWk - like her dad she just rips off better programs, but she didn't even have the taste to copy an actual good product.

EDIT:

Oh yeah, she popped up in that How To Rule The World book about Stanford:

“Everyone was very sharp. Very sharp,” one student, who didn’t otherwise love the class, stressed. The cohort my year included freshmen and sophomores funded by Sam Altman or Peter Thiel. Some wanted to “solve aging.” were in defense tech, working on secret projects with contracts from the government or major companies. Some worked on climate change. One had already started a string of robotics companies and earned a display in a museum. Others worked on commodities trading. Another was Phoebe Gates—daughter of Bill and Melinda—who made her name as a prominent sustainability advocate and cofounded a company with her Stanford roommate.[*2] Together, as undergraduates, they’d already collectively raised millions of dollars for startups—and, of course, had done internships at every possible top company, from classic FAANG behemoths (Facebook, Apple, Amazon, Netflix, Google), to Jane Street, the quantitative trading firm that pays interns hundreds of thousands of dollars, to top-flight VCs.

Footnote:

*2 When I reached her, Phoebe Gates wrote that she “would rather not speak on the class.”