Speaking of audio...
I was under the impression that Netflix was sending a Dolby 5.1 or 7.1 signal. I swear my receiver had surround decoding in 5.1 from Netflix. I have not been able to re-access that feature in a couple of years.
Now, somebody did mess around with my remote because they couldn't easily find the volume control...
Yes Netflix should have 5.1 and even atmos audio if your AVR is capable of that.
Though Netflix stupidely has 3 different subscription levels, the lowest one only got 480p SD video though that is being upgraded to 720p soon.
The middle one has up to 1080p HD video, and the premium $20/mo is the only one to get 4K HDR/DV video.
Maybe the multichannel audio is only available on the higher levels too?
Instead of that high price, I get 4 other streaming services for under $20 that all have 4K HDR/DV and multichannel audio: Hulu, Disney+, Prime Video, Apple TV+