I think “Filter” might be a bit too broad of a term. Do I use photo editing to fix lighting and color issues? Yes – photo pros do this all the time. I’ve been known to use a tiny bit of “skin smoothing” as well…
But that FaceApp business is totally something else. No amount of makeup or traditional filtering in the world would make Joe Rogan look like what you see in that picture his daughter posted. FaceApp is basically virtual plastic surgery. None of my photos have altered my facial dimensions or proportions. The makeup is all mine. (I’m not trying to brag, just trying to make a point).
So I don’t have a problem with people using these apps, as long as you don’t hold yourself up to these standards. Realize that most of what you see online is not real, and be comfortable with the “real” you.!