If you want to play SFZ in GNU/Linux then use Carla. It makes use of SFZero. But it is very limited in the opcodes it supports. You can always use the Sforzando player in Wine via LinVst but obviously that's not free software.
If you want to make your own libraries then use HISE which runs natively. And I've also released a woodwind library built with HISE, available at
https://librewave.com.