I've recently purchased a Samsung Q990C and so far I'm really happy with it. I want to get the best out of it and was hoping someone could give some advice on rear speaker placement.

My room is a strange shape, but basically where I sit I have my TV in front with the soundbar underneath. My sofa is on the other side of the room, a little distance from the wall behind me, enough that I am able to place the rear speakers just behind me and to each side, around ear level (ish). However, there is no wall on mi right side as my room is L shaped, so there is nowhere for the right rear speaker to bounce the audio from it's side speaker back in to the room.

What I was thinking was I could change the setup in the Samsung SmartThings app and put the rear speakers in to front speaker mode, and swap them over so the Right is on the Left and vice-versa. In my mind, this would mean the side-facing speakers on the rears would be facing in to the room rather than out, but would be on the correct side.

Would this cause any major issues in terms of the audio? I'm thinking this could affect the upwards firing audio but would it really be that much of an issue? Would I be better off just having the speakers in their "correct" positions with the right one firing on to open space?

If it helps the distance from my seating position to the TV is approx 4 - 5 metres.