TerryN1013: I saw something bout having to select "visible to friends" but can't find where to do that.
Terry on the Mobile/PCEA/Steam versions, which I assume you are referring to when you say "Visible to Friends" the Green "Available to Play" light has been streamlined to a basic On/Off option. You will have to start some type of game to access it. The easiest would be a Solo Ranked Round that you could quit as soon as you've checked/changed your status. Click on the menu in the top Right corner and it will open up a side menu. It's in the middle of it just below a "Friends" button, which will open up your Friends list where you can see if anyone has become available while you are playing.
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There were earlier comments in this thread about having this function
more out in the open and directly visible on one of the main menu pages,
and I would have to agree. It would ideally be added to the "Friends" page so that you could easily see your status and your Friends status' as well.