I just realized that you might not know what a "bootcamper" is. Facebook's hiring process generally goes like this:

- you're interviewed with a random team and evaluated if you'd be a good fit for the company.

- you are hired and go through a multi-week "bootcamp" to learn FB's vocabulary, processes, and tech stack, fixing some real bugs and implementing some real (but minor) features in the process.

- upon completing the bootcamp you seek a team that is of interest to you and if interest is mutual, you join the team. If you can't find a team after X weeks, you part ways with the company.