@Tablets6lite: I had a look into this, and Dual Audio may be available on the Tab S6 Lite, as it features Bluetooth 5.0. To check, head to Settings > Connections > Bluetooth > Tap the 3 dots in the top right > Advanced > Dual Audio. If it's not there, you may wish to check out Settings > Sounds and Vibration > Separate App Sound. This isn't quite the same, but does allow you to play sound from a selected app on a different audio device.
Samsung Galaxy S6 Lite with Android 10 does not have Dual Audio. I have the device and the options just are not there. Yet another let down with this tablet and with Android. Bought it as a mediapad for my girls for car trips and such yet due to Samsung they're forced to get tangled with wires with their wireless headphones (luckily I chose headphones with both BT and cable connection). I bet the option is there only on more expensive models - Samsung ain't gettin' any more of my currencies.