I have an Edifier W600BT Bluetooth headphone and Acer Nitro 5 (Intel 10300h/RTX 3060 model). It will connect successfully in my laptop but after a couple of seconds, it will stuck switching speakers and headphone. I found the fix itself since most of the fix in the Google not working for me. This method it may or may not help your issue. I want to share the fix specially have the same Bluetooth headphone and acer laptop model.
1. Connect your Bluetooth headphone
2. Once connected, wait a couple of seconds until it will keep switching in playback menu.
3. Open ‘Device Manager’
4. Disable ‘EDIFIER W600BT Hands-Free AG’ (it may vary on your Bluetooth headphone) under ‘System Devices’
5. Disable ‘Headset (EDIFIER W600BT Hands-Free)’ under ‘Audio inputs and outputs’.
6. Once done, restart your laptop.