If you're hypothetically a bitcoin millionaire/billionaire that started accumulating Bitcoin a decade ago, how would you cash out?

Hypothetically you were a naive kid back then that likes playing with internet money, and started accumulating Bitcoin from 2009 onwards, from mining, faucets, all the free and cheap ways, and say you were broke enough to not even buy some at less than a dollar. Let's say you accumulated about 50,000 thousand or so Bitcoin, how will you cash out with the least amount of exposure and doxxing?

Given that bitcoin network is a public ledger, and Centralized Exchanges require you to KYC to cash out from their platform.

Don't send me a dm, this is purely hypothetical.