This isn’t strictly “wireless AirPlay” from your phone, but it’s the most reliable 5.1 method.
AirPlay 5.1 is a for people who have local movie collections or use their Mac as a media server. It won’t replace HDMI for Netflix surround sound, but for wireless, multi‑room, or cable‑free listening — it’s surprisingly capable. airplay 5.1
AirPlay does not support 5.1 from streaming apps like Netflix or Disney+ on an iPhone or iPad due to app limitations. But for local files, Plex, Infuse, or Mac‑based video players — it works beautifully. but for wireless