Years ago when VLC was the rage, I could open any video or sound file I wanted in QuickTime Player with an array of plug-ins including Persian, Flip4Mac and a couple others I’ve long since forgotten. That served me well until it became impossible to install and use QuickTime 7 on a modern Macintosh.
IINA quickly filled that hole for me, and was a solid upgrade over a player I never asked much from, readily replicating all the features I cared about and throwing in a few more. If all you want is a media player that lets you double click a file and play it back, IINA is the best there is on the Macintosh today.