Oculus has an incredibly detailed support page that breaks down each individual headset and areas where troubleshooting and FAQs occur.
Helpful videos for pairing devices with a cell phone, tablet, or computer:
Quest 2
Oculus Connect
Meta Quest
Introducing Oculus Quest 2
Meta Quest
Introducing Meta Quest Pro
Helpful videos for pairing devices with a cell phone, tablet, or computer:
Quest 2
Oculus Connect
Meta Quest
Introducing Oculus Quest 2
Meta Quest
Introducing Meta Quest Pro