They care a lot less about what you've done and where you are in your career, mainly because most of the what and how of the job is fairly unique to Meta.
They want good Meta employees and people who thrive specifically in their culture and not necessarily people with a career trajectory and goals beyond the company.
Turns out that there's a lot of over-achieving types out there whose sole desire in life is to be Good Germans. You will know immediately if this is or isn't you.