I have many BT devices, from budget to high-end, and they all have problems, from minor to major. I stress "from minor to major"; in my experience BT does ulti

I have many BT devices, from budget to high-end, and they all have problems, from minor to major. I stress "from minor to major"; in my experience BT does ultimately work, but there are always minor, odd, kinks like (I assume) an Android update preventing my headhphones to establish a "media" connection 50%+ of the time. Given that also my high-end devices are subject to problems (eg. ~400$ mobile phone with ~400$ headphones), then the specification may be technically correct but practically unusable. To me, "practically unusable" == "broken".