I was able to resolve my issue. It turns out that it was not installing tuna into the plugins directory of my user/Library, but rather it built it inside the extracted downloaded zip folder of the plugin. I copied the tuna/ directory from where it build it and put it into my user/Library OBS plugins folder manually.
Upon OBS startup, I was again asked about that security issue as detailed in my previous post. I was able to follow
This Link from the Apple Support website to allow the file to run.
I see the Tuna settings option from the Tools dropdown in OBS. I am getting the Spotify and tuna API playing together via the Wizard (or whatever it's called :9 )
Right now I am looking for the output path and how to grab the data. I think that information is already explained on the forum, I just need to find it.
Thank you,
Werelwolf