[maxaf]

At FANG-style companies the decidedly non-transparent process is already well known and is gamed on a regular basis.

[Konnstann]

AFAIK the only part that is gamed is the one that is fairly transparent, the leetcode problems.

[username90]

They aren't really trying to hide it, they send you an email with a page or two full of topics and links to help you prepare for the interview. The current state where people practice for their interview is exactly what they want.