I imagine it's called Partyline because that's the project this looks based off of:
You don't use LXST in any capacity, not even using the profiles it provides from Opus/Codec2. (If this isn't just 100% vibecoded jank to begin with)
If you want to say I stole something, I stole the UX from Mumble. I straight up lifted all of the UX from there because it is one of my favorite applications and wanted something Mumble users could switch to without having to relearn anything. I had it open the entire time while developing lol.