Model facts that change the troubleshooting path
Samsung documents Bluetooth 5.4 for Galaxy Buds3 Pro in current regional specifications.
Samsung advertises up to 30 hours of total listening time with the charging case under stated conditions; actual battery life varies.
Test matrix
What to test and what a pass actually tells you
Run the test closest to the symptom. A passing result narrows the diagnosis; it does not certify the entire device.
A pass proves browser playback reaches the selected output path; it does not prove every codec, surround or app-specific route.
→A pass proves browser playback reaches the selected output path; it does not prove every codec, surround or app-specific route.
→A pass proves browser playback reaches the selected output path; it does not prove every codec, surround or app-specific route.
→A pass proves the selected input delivered audio into this browser session; app routing or processing becomes the next branch.
→A pass proves the selected input delivered audio into this browser session; app routing or processing becomes the next branch.
→Diagnostic focus
Problems worth separating on this model
Evidence handoff
If the browser cannot reach the suspected subsystem
Keep the browser result as one observation, then move to the operating system or manufacturer diagnostic that can see the protected hardware state. Do not interpret an unsupported browser API as a failed component.