Now in Public Preview & Targeted release: Teams Discover Feed

Just showed up in my Teams Nav bar and I spent a while trying to find documentation and stumbled across this Blog post. I tried to adjust my settings using the Gear in the Discover Feed and it gave me an error message. "No user preferences found"

I also tried using the ellipsis at the Author Post in the Team and there is no option as described in your bullet #3

I haven't subscribed to any notices from this Team so not sure how Analytics decided to push to my Feed.

How long does it take for the Graph API or the other AI you are using to expose preferences for me to adjust?  If that is not an option, how can I disable "Discover" without removing myself from the Preview Features?  Being in IT for my Org means I have to stay ahead of these things before users start asking questions.
Thanks!