Video to kodi, audio to android headphones?

Android 10 phone with latest paid Yatse.

Almost latest Kodi on a Pi 3b connected to a TV

Is it possible to play video on the TV while routing the audio through the phone’s headphone jack?

I ask because I understand it is not possible to pair my phone with the TV via Bluetooth as a BT headset.

You can’t there’s no API in Kodi to get only audio and ensure any kind of sync.