What to do if I miss this pop up after installation?

I’ve been following the tutorials effectively up until this stage, where something happened - maybe I was distracted idk but I missed this pop up. The computer is running noticeably janky and I’m guessing this is why. I opted to upgrade to Ventura under the 1.2.1 version of opencore. Does anyone know what I should do next? I can’t find anything to do with opencore on the computer now. Thanks in advance