Since you are fessing up I thought I should admit to not having an atmos speaker system at all. I have two floor standing tall mains, two surrounds set high on the wall, two rear speakers set high on the wall and a center channel speaker set above the oled panel for a total of seven speakers. I use the acoustic couplers of the mains for subwoofers. I decided against the cost and complexity of an official atmos system but with a good atmos soundtrack I can get a satisfying distribution of sound. This was originally designed as a 7.1 system. Since I am lazy, cheap and half deaf and few movies have atmos and the atmos model is so screwed up I am complacent about redesign.
Anál nathrach, orth’ bháis’s bethad, do chél dénmha
Display: LG OLED 65e6p, Player: OPPO UDP-203, AVR:Yamaha TSR 7810, Streaming: Comcast 60Mbps RG6 to Cat6a, Speakers: Mains Vandersteen IIC, Center, Surrounds, Rears Klipsch