macOS decodes my 7.1.4 from Apple Music, but that's not the issue. macOS can't decode TrueHD lossless Atmos, only Dolby Digital Plus lossy Atmos.
I know. Never can be happy for to long..
Yes, there are limitations. But it's still a first time for decoded Atmos in a "home computer".
But I'm calmly optimistic for the future. Those of us wanting Immersive formats decoded in a PC are of course few. But at least more than two..
As for myself, I've stubbornly held on to my Lynx equipped HTPC recipe since I bought my first Lynx soundcard...2003..? Somewhere around there anyway. Replaced my Krell HTS 7.1 prepro, which in itself was a really good performer at the time, but no HDMI etc..Never really been tempted to go back to separates.
There is however another way, working 100% with no losses, purely digital, to get decoded Immersive sound, incl. Atmos, Auro3D, DTS-X and what have you, INTO your PC and JRiver for further processing with like Dirac, Audiolense, what have you. With no limits in number of channels, just DAC up until wallets empty..or get a pro interface with as many channels you need...
I will go this way when I change home next time..
Not free, but not much money either..maybe from $500..
So, what's this "other way", you may ask..? Maybe you know??
Time for dinner nap..
(Mojave may not answer..
)