I disagree. I've had many issues with MPV over the years, ranging from lack of hardware decoding support on some hardware to plain crashes for files that VLC and even web browsers played flawlessly.

I see people claim that VLC somehow produces inferior output but I've never experienced this. The only way mpv seems superior is that it can deal with Syncplay better than VLC, in all other cases it's just a more crashy, less intuitive media player in my experience.