This is a situation where you need to look at a packaged wireless sound bar ecosystem. The problem is latency, where there's a sync issue between video and audio. A sound bar system manages sound source and any timing issues within its walled garden.
Devialet has a fully wireless audio separate system if you have a spare $17,000 US. Klipsch has a WiSA-based 5.1 wireless speaker package, but apparently it's so buggy and poorly implemented that you'd probably ask for a refund.
The WISA organization has a site that uses their technology suite. I'd check reviews to see if you're the beta tester. Wireless is the future, but it won't be mainstream for another decade.https://www.wisatechnologies.com/speakers