It's absolutely critical to try things and find out what works for you. But it means you have to try stuff. Sometimes the resulting configuration ends up looking funny and being totally unconventional. But if the months go by and you remain happy with it, that's what matters
My latest funny looking setup involves angled gobos placed at the first reflection points on the side walls and then more gobos behind me to either side. Here at work I had learned about absorbing first reflections on sidewalls, but then replacing them with delayed reflections by bouncing sound off the back wall toward the first reflection points. A panel or TubeTrap that absorbs highs on one side and reflects them on the other will let you do this. My impression is that it sounds fantastic! But wouldn't have know had I not tried it. Just absorbing or diffusing first reflections is not nearly as pleasing to me. If my room was wider this might not be necessary, actually I know it's not as important because I was set up in a wide room at one point and it sounded great. The narrow room was a relative letdown.
I fully expect that some listeners may not be as impressed as I am with my non-standard setup, or may not like it at all. I try to be OK with that, and I mostly succeed.