I proceeded to beat Night 5 on the next run after this comment. Foxy decided to not be a bitch. i still dont know how to counter freddy but, onto Night 6!
it’s probably just a bug that they haven’t patched yet but if you have the camera on that last room she’s in she won’t attack even if you don’t use the camera
So then you just need to be able to react to foxie’s noise notification and hope to have enough power