There Is No "I" in Threesome2021

I kinda guessed the ending when I was 30 minutes in as some of it felt not as real as it should have looked in a proper documentary but then I was like “Oh it’s documentary. What am I thinking”. Likewise it was super deceptive in every way. I might cut off some points as I had a thought of an ending much before but what I would want to say is it’s all about execution. It was spectacularly deceptive. Now I am confused whether this is called as a documentary or just a feature film. Either ways it was a very unique experience.