As with all guidelines, this always depends on the starting point and personal data.

If you are on the heavier side and a heavy drinker and carb eater, going low carb/no alcohol you will lose easily 10 kilos in a month (mostly being water weight).

If you are a healthy weight and eating normally with a glass of wine here and there, 0.5-1kg is probably a good range (and probably around 70% of it being fat loss)

If you are lean, 0.25-0.5kg a week is a good goal (and probably 50% will be fat).