I was wondering if you can have a scene with the panther in the public build because I see in the wiki and I'm not sure how to get all the requirements or how to even start the scene
If your talking about the quest panther and his problems, the only scene he has is the bar scene which can be triggered by selecting the sub choice, then repeating the scene, after going to the bar at a certain time you will find a choice to go to someone familiar, after go explore downtown in the morning to afternoon, then the event should trigger I think
The third part of the Panther quest in Downtown? As Shmallow noted, you need to make sure you're on the Sub and not the Dom path for the panther, which is based around whether you choose to accept his cigar in the Park event (Dom path) or you act uncertain and he forces your face into his leather pants (Sub path).
You can't switch paths once you've made the decision, so if you accidentally put yourself on the Dom path, then you'll need a restart to access the Sub path.