I recently got galaxy buds and I'm not sure if it's the phone or the buds themselves. When I want to listen to a YouTube video with them I cant hear the audio from the buds but from the phone itself like normal when the buds aren't connected. This is different when I listen to videos on the my schools ipad where I can hear YouTube videos from the buds.
Check in Bluetooth settings to make sure that the "Audio" is enabled for the buds. When the Buds are connected you should be able to check under Settings -> Bluetooth -> Click the gear to the right of the Buds.
Unfortunately even after restarting the device and disconnecting them even clearing data and cache from the galaxy wearable app it still projects the audio from youtube videos from the phone instead of the buds.
@userMRz6B5JQnd Are you using the youtube app or the web browser version?