@MobileTen I know there is a kind of system event that at least can notify other apps about finishing playback.

There is a great answer for this question - https://stackoverflow.com/a/71678102/5709159

@Claude31 yeap, it is Mbps (was measured by speedtest), 180 Mbps is a peak value.

Eventually, I just make a hard reset and it is ok:) Actually, I tried it, but in the wrong way, I tried to click and hold all the buttons, but in my case, I needed to try a specific combination described here - https://support.apple.com/en-us/HT201412