Not sure what in the world happened, but i usually always saw that option in the Software Updates section but it’s no longer there now. I’m currently on the public beta, but the latest build has never showed up for me so i’m stuck on the previous build. I even tried installing the profile on it, for 12 and 13 (just to see if it would show up as available) and nothing. Tried signing out and back in to my Apple ID also