Best choice for spatial audio?

Just got a new XBox Series X and the Dead Space remake, and an Arctis Nova Pro Wireless headset.  Now I'm wondering how to setup spatial audio?  Do I turn on 3d in the game, and also on the XBox?  Should I try Atmos or DTS Headphone:X?  

Right now, I turned on 3D sound in the game, and Windows Spatial Audio on the xbox.  The sound is nice, and I hear all sorts of cool sounds including muffled sounds of things happening far away, Isaac's footsteps, and that creepy whispering in the background.  However, the main thing I was looking forward to is the ability to hear when I'm being crept upon from behind.  I really cannot hear direction with my current setup.  Am I doing something wrong? 

I've downloaded both the Atmos and DTS apps to the XBox, but have not initiated either trial.  Will either one give me better spatial audio than the Windows Spatial Audio?  And should I be using the in-app 3d and the XBox setting together?  Or is that going to do some sort of over-processing of the sound?

Thanks!