The next behavior was observed - in the "Music Controls" section of my watch, when switching to the next/previous track,
the switching is done in steps of 8 (F.E: I'm listening to Track #1, I want to switch to Track #2, I press the button on the watch and Track #9 starts).
"Pause" and "Resume" buttons work.
Video record attached.
I also tried with another players - music player build in Telegram, default Music player and "Music Player & MP3 Player" App.
Garmin Instinct 2 Solar: software version - 10.10 (4a98094)
Garmin Connect Application: software version: 4.62.2
Smartphone: POCO M4 Pro 5G with MIUI 12.5.9
OS: Android 11