I tested all the quantizations I can make on my PC. Only TQ seems broken, the rest are fully supported.

Regular Quants

• f16
• Q8_K_XL
• Q8_0
• Q6_K
• Q5_1
• Q5_0
• Q5_K_M
• Q5_K_S
• Q4_1
• Q4_0
• Q4_K_M
• Q4_K_S
• Q3_K_L
• Q3_K_M
• Q3_K_S
• Q2_K

IMatrix Quants

• IQ6_K
• IQ4_NL
• IQ4_XS
• IQ3_M
• IQ3_S
• IQ3_XS
• IQ3_XXS
• Q2_K_S
• IQ2_M
• IQ2_S
• IQ2_XS
• IQ2_XXS
• IQ1_M
• IQ1_S

Ternary Quants

• TQ2_0
• TQ1_0