This is a specific and somewhat technical topic. The is a hardware workstation with its own powerful sound engines (HD-1, AL-1, CX-3, etc.). Kontakt is a software sampler from Native Instruments. They do not natively interact; you cannot directly load a Kontakt library into a Kronos.
, several third-party developers have sampled the workstation's legendary sounds to create comprehensive libraries for Native Instruments' Kontakt. These libraries aim to bring the Kronos's high-end "HD-1" and "SGX-2" engine sounds into your DAW without needing the physical hardware. korg kronos kontakt library
NI Kontakt (specifically the full version) is the opposite of the Kronos. It is a shell. An empty warehouse. But that warehouse can be filled with the best sounds on earth. This is a specific and somewhat technical topic