Assuming for K1. If so:
Check out similar timelines here: https://www.visajourney.com/timeline/k1list.php?cfl=0&op1=5&op2=d&op3=1&op4=2&op5=5,6,8,10,11,13,14,15,16,17,18,20,21,22,25,26,27,28,108,110,111,208,210,211&op6=All&op66=All&op7=Russia&dfile=No&adv=0
Check out my timeline. For us the wait from NOA2->Warsaw was about 1.5 months. Another 2 months after that before the "instructions for interview" came (you're only eligible for your appointment when this comes)