Streaming Atmos on Netflix vs BluRay

I don’t see why music streaming has to be better than CD, if you are using the same DAC and comparing equivalently priced streamer vs CD transport. Both CD and streamers are sending 1s and 0s to a DAC.  And then there is the variable of Internet quality, such as your router, your local bandwidth, etc, not an issue with physical media.
The latter is even more important with video.  With everyone streaming Netflix, the ISP tend to limit the content down the pike, so it shouldn’t surprise you that a Blu Ray will best streaming 

It doesn't really surprise me I guess.  But still, when my picture says 4k and the audio badge says Atmos, I kinda do expect them to be on a level playing field.

I am not sure that is a reasonable expectation currently.  I am not a IT person but I would think that it has to be harder to incorporate information in a stream, and have it successfully decoded at the other end, than with physical media.  Especially with the pandemic, with everyone getting their entertainment at home, with Zoom being the means of communication for all schools and workplaces, the demands on the ISP must have increased several fold in the past year unexpectedly, and it wouldn't surprise me if all providers have throttled back a bit on bandwidth.
   Physical media still have the edge, imo, but can't beat streaming for ease of use

I still think CDs sound way better than streaming, even hi-res Qobuz and Tidal.

I tend to stream music that I don't have on CD, so it's hard to make direct comparisons, and then there are the equipment variables--are your streamer and CD transport roughly comparable in price?  are you using the same DAC for both?--so who knows?  Qobuz can sound very good, but at least with CDs there aren't issues with ISP controlling bandwidth, and recordings suddenly becoming unavailable, as one of my Qobuz favorites has suddenly disappeared