Hello! Felix has his own route. When I originally wrote the demo, Felix had two routes, but I decided that might be too repetitive. I later introduced a new character who wasn't in the demo - Atlas.
But because of the way I wrote the demo and storyline, Felix was still heavily involved in that path of the story. He needed to be around.
So Atlas' route is mostly his own, with some optional scenes with Felix.
Felix's solo route (released next) will be his proper route. It will delve deeper into who he is and explore his and Nova's relationship beyond the surface level shown in Atlas' route.
I hope that's cleares up some confusion!