I don't know why there's so much anti Apple sentiments around.
You use the best tools you have and in my case, that means using Audirvana Plus which is a Mac software and using the free Remote app to control my playlist on the headless Mac Mini.
If you want to change the system, just run a batch conversion to FLAC or WAV. I use AIFF because I want embedded metadata (artist names, album art) and I want uncompressed lossless so it was either AIFF or WAV.
Besides AIFF is easily playable on most PC systems (even without iTunes)