When I switched from Windows to Mac to learn code, I missed using the audio player I had. It was a small app called Billy (https://www.sheepfriends.com/index-page=billy.html), and it was this freeware audio player that honestly didn't do much other than the basics.
Anyway, now that I'm on a Mac I use something called Vox (https://vox.rocks/), but am curious what you all use!
So there was Billy, which was all I really needed. I liked that it was lightweight and just worked. Never crashed and didn't have a bloated UI -- probably brutalist by today's standards.
Now I use Vox since I refuse to use iTunes. I'm not a huge music person though and I'm just too lazy to upgrade (unless someone suggests a better one 😁).
Oh, and on my Android phone I use Google Play Music, and used to use Poweramp. It was a bit buggy on my phone though so I just went with the stock app.