I haven’t tried it myself yet, but I hear the SideQuest app store is the place to go.

I’ve got a Meta Quest 2 as a hand-me-down and yes, it’s extremely locked down. It’s possible to use a third-party app store, but to make it work you have to get a developer account with Meta and enable wireless debugging.

I installed Windows 11 Pro 24H2 yesterday and the oobe\bypassnro trick worked for me. You just have to make sure no ethernet cable is connected. Then if you tell the installer you have no internet, it’ll let you create a local account.