Most of the times, videocalls sound too... stuffy for me. There's something off about the frequencies, I'm not sure if that's some kind of tight windowing and aggressive compression, or noise cancelling eating into signal, or both, but it's missing the high-order terms, so to speak.

(I've recently switched to using my headphones over audio jack again, and the problem persists, so it's not the Bluetooth headset profile - though in general, when HSP kicks in, the audio quality goes to the gutter.)