>>385363037
You need to enable dev mode (via the app) and then somewhere in the quest 2 itself enable third party apps (because you won't be installing them via the official store). Look up a guide on how to get sidequest working, that's a legit thing so there's guides for it on youtube but if you get that working piracy should work as well.
As for pirating games, get the free for all launcher from the reddit quest piracy group. It has a massive up to date selection, it installs shit for you and will even offer to update existing pirated games if it detects that there's a newer version available than what you have.