
I have never seen anyone refer to a love triangle story as 3P, everyone usually only uses it for poly. If it’s a love triangle, people would just refer to it as a love triangle. Other definitions of 3P refer to it as a threesome
Either way, the title and description heavily imply it is poly. Plus the author is know for making poly works

“3P” is definitely overused and not a reliable term to know - whereas poly and love triangle are much more accurate! To be very precise, 3P only means threesome, so there is no indication in what kind of dynamic/relationship the characters are.
Their other work leaned into a love triangle since there is a hint of rivalry - but since the bottom chose both of them and both were fine, they are in an established polygamous relationship as you said.
So what I’m hoping for this is, that everyone is mutually and consensually in a poly ship!! Though it does seem to tend into a rather toxic one haha ( ̄∇ ̄")
I hope this will be poly but it looks like a love triangle ;;; hoping the bottom won’t be a push over and both tops aren’t toxic hahaha wishful thinking ;