Hey Kosso,
I just tested the create-expo-app with-tv on my Fire Stick (running FOS 7.6.8.8) and it seemed to work fine with Expo SDK 54.
This might be obvious - but can I double check you are using the same WIFI on both devices?
Also on this: Also you naturally cannot connect a Fire Stick 4K via USB for testing/installing/debugging -
I usually connect the firestick to be powered via USB to my Mac and then use a USB 3.0 HD Capture and OBS to see the display - it makes this much easier !
Also if you have any questions relating to React Native feel free to tag me next time 