Welcome to the Community Forums, @abdirizak.mohamed.hassan.2023!
I know how confusing the forums may be at times, I'll be sure to explain as best as I can about a few topics. You'll more than likely use those under the "VR Forums" drop-down more than other topics.
Announcements - Important announcements about Meta, Quest devices, and the World of VR!
Get Help - Get some troubleshooting and help with any issue you may be facing.
Talk VR - Chat about anything related to the World of VR!
VR Experiences - Share your precious VR moments with the rest of the community!
International - For supported languages outside of English.
Off-Topic - Anything that may not be related to the World of VR.
Ideas - Any suggestions or ideas on how to improve Meta's software or hardware!
Meta Horizon Worlds - Focused on all things Horizon Worlds
Developer - Meant for development of VR
MVPs - This page will give you some details about the MVP program and how you can join