After rolling out spatial audio support for iPhones and iPads last August, Netflix announced that it will make the feature available to more users, and it supports playback through any stereo speakers or headphones.

Netflix movies/TV shows already support spatial audio, no special equipment required
According to Netflix, the new spatial audio feature does not require any specialized equipment. Netflix subscribers can search for “spatial audio” on the platform to see all supported content. However, the feature is currently only available on select Netflix original TV shows and movies, including the fourth season of the hit sci-fi series Stranger Things, Red Notice and The Witcher, among others.
In its announcement, Netflix mentions that the new spatial audio feature “helps turn the movie experience of immersive audio into any stereo, so you can better immerse yourself in the story no matter what device you’re watching Netflix on.”
IT Home understands that the feature is available on all Netflix subscription plans in all regions. Netflix’s new spatial audio feature leverages Sennheiser’s AMBEO 2-channel spatial audio technology. However, this feature does not support the head tracking feature of the AirPods Pro.