I would recommend supercollider because it’s UI components also translate well from Mac to Linux - I created a single app with a nice UI in supercollider and it worked seamlessly on both Linux and Mac.

Admittedly I haven’t used any other sound programming language, so my opinion is heavily biased ;-)

Pure Data's UI works identically on all platforms. The others I mentioned are text languages.

If you've never used anything other than SC, it's well worth learning some others. Different paradigms make different things easier, and thus affect what you are most likely to do with them.

Personally, my axe of choice these days is running text languages from within the patchers, such as Csound in Max or PD.