Also, if anyone knows of an article for simple people that explains this whole thing with Celebrite and graphene OS I'd really appreciate it if they could send it. Thank you!

RRZishe Please excuse my ignorance, but how would I trigger this? How can I go into before first unlock stage?

Turn the device off, or reboot it.

If the auto-reboot option is on, the device will automatically reboot to BFU after being locked AFU for the indicated interval.