It does exist. I ripped my CD collection ~20 years ago. VLC and Finamp both work great as players depending on whether you want to just load up files in a directory, or have a more advanced media server (jellyfin) that can do stuff like transcode FLAC to opus on the fly for mobile clients.
Sub music with the thing you like.
Freaking heck, I've gotta dismiss ads on my BANKING APP just to deposit a check.