I find https://www.strawberrymusicplayer.org to be great across Linux and macOS alike.

Woah, this looks like a fork of Clementine! I didn't know it was still around. This was my go to back when I actually kept a local music library.

Which in turn, Clementine is a fork of the original Amarok. :)

Awesome, I thought clementine was just dead without successor

If everything else fails, there's always ncmpcpp: https://rybczak.net/ncmpcpp/

and there is foobar2000 for Mac[0]

[0] https://www.foobar2000.org/

Swinsian is excellent for large libraries too.

Yes. I have about 2.5 TB of music and Swinsian does not break a sweat.

I'm using https://www.navidrome.org which support streaming listening on mobile clients.