atmos and even dts x content are very findable and vlc has the codec information in the tool menu

have a 5.1.4 system hooked up by hdmi to the igpu and the video to the gpu and it sounds just like the theater but be sure to check what is available for the content you are searching because it might not exist

for example Harry Potter just got rereleased on dts x and the news was on the official dts site but also check blu-ray.com to see what formats exists

the green for atmos comes on and the amber for dts does too as well as the white for dolby digital but again vlc confirms this too in the codec information and atmos for home theater will do for dolby digital too

be prepared for enormous file sizes but so worth it and you will have to use the atmos for home theater or the dts x for home theater under the windows spatial sound settings per the content and yes switch back and forth