How do I know if I am running Ventura Beta???

How do I know is my MacOS Ventura is a beta version?

Since last update I am not able to import pictures from my iPhone 12. Called support and tech said it was because I was running a MacOS beta. I called tech support several times now and I can't get help on 1. installing Ventura "beta." 2. import my photos. It sounds so simple it is complicate!!