The characters after the shorthand are probably chip revision.
{HSW,BDW,SKL,KBL,CFL} are probably Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake.
{HSX,BDX,SKX} appear to be the codenames for some variants of Haswell/Broadwell/Skylake - I find mixes of references to those being the Xeons, associated chipsets, and otherwise.
GLK appears to be Gemini Lake, a codename for some of Intel's really low power SoCs.
{HSW,BDW,SKL,KBL,CFL} are probably Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake.
{HSX,BDX,SKX} appear to be the codenames for some variants of Haswell/Broadwell/Skylake - I find mixes of references to those being the Xeons, associated chipsets, and otherwise.
GLK appears to be Gemini Lake, a codename for some of Intel's really low power SoCs.