Honestly, Windows 11 doesn’t fully support native Auracast broadcasting yet. Microsoft has started adding some Bluetooth LE Audio features, but proper open Auracast broadcasting isn’t available for all users right now. For now, it’s more of a gradual rollout, so we’ll likely have to wait for future updates.

You can contact microsoft support team for feature request.

You're experiencing a very common frustration: your Samsung Galaxy S25/S26 Ultra has fantastic native Auracast support, but your Windows PC feels years behind. You are correct that a full native Auracast broadcast feature (allowing one-to-many streaming) is not yet available for all Windows laptops and tablets. Here’s exactly why and what is currently happening.