If I’m not apart of a group chat … why is a join face time button on my screen at the top right corner in my imessages?
iPhone 11, iOS 16
If you mean the 
Camera icon, that's not a Join Facetime button, that's a start Facetime icon. You can at any time start a FaceTime call with the person you are messaging. It does not need to be a group message or have multiple people involved. It can be a one to one FaceTime call.
The only time you should see an actual button with the word "Join", is when someone starts a FaceTime call, and would like you to Join it.
If you mean the Camera icon, that's not a Join Facetime button, that's a start Facetime icon. You can at any time start a FaceTime call with the person you are messaging. It does not need to be a group message or have multiple people involved. It can be a one to one FaceTime call.
The only time you should see an actual button with the word "Join", is when someone starts a FaceTime call, and would like you to Join it.
If I’m not apart of a group chat … why is a join button on my screen in my iMessage with some one I was messaging earlier?
