Almost all of the (outer) wall corners in my house are bull nosed i.e. not 90 degrees but a rounded 90 degrees. Not my pic, but like this:
I am planning on adding some recessed panel wainscoting and also re-painting my open floor plan (kitchen/living/dining/foyer/hallway), and wondering how to deal with this.
Would love to hear your ideas and see pictures of what you have done!