Thank you for the kind words! Not every door in Chirophobia is interactable. You never need to open any doors in a level to progress. Only the door at the very end of a level can be interacted with, and they should be pretty obvious to tell apart from the static doors. Everywhere you need to go is already open for you. If you're stuck maybe you missed something in the environment?
Hope you're willing to give it another try, and I hope you're able to find where you need to go! :)
(hint: platform on the balconies up to the rooftop, then find the scaffolding)