I plant garlic in the fall too. I haven’t checked on it lately though. Did I mention that I hate to go outside when it’s cold? LOL
I have planted in the fall in the past, but last (this) year I planted both Fall & Spring. I lost some (as usual) of the Fall planted; but none of the Fall planted produced as well as the Spring planted.
I’ve also tried planting shallots in the Fall, and even with heavy mulching, lost anywhere from 80-100%. I Spring planted this year, and got a decent crop.
I was using varieties recommended for Fall planting in our Zone.