Dolby Atmos output from through USB c to HDMI cable

I'm trying to listen to music in dolby atmos on my Samsung q990c soundbar through amazon music. Amazon music supports dolby atmos but only on their smartphone app, not on a PC or TV app so I can't listen to atmos mixes that way. I have a UGREEN USB C to HDMI Cable (8K@60Hz), 4K@240Hz HDMI 2.1 Cable, but when plugged into the soundbar, or the TV as pass through or samsung dex mode I'm not getting atmos, only multi channel PCM. The phone i have is Samsung Galaxy s24 ultra.

Is there a way to get atmos output via the cable I have by tweaking some settings, getting an additional app or any other way?

If not is there another music streaming service that would alow me to listen to music in dolby atmos with a PC app (the PC is connected to the soundbar) or a phone app via the cable I have?

Do I need to buy some additional gizmo to make this happen?