Not sure if that makes sense unless your going for ATMOS / DTS-X.
With only bed speakers the surround processing will assume a non-object format. So, I don’t think the LFRS will improve your experience, over the QS10s, given that you want a diffuse image in those formats. .
What is non object format versus object?
I googled it but it’s not clear to me what those articles are trying to tell me.