Check out these threads on the whole "feudalism didn't actually exist" thing:
AMA "Feudalism Didn't Exist" : The Social & Political World of Medieval Europe by /u/idjet
When historians say feudalism never existed, what do they mean?
I've heard it said in this sub that feudalism did not exist in the medieval period of Europe. What word would one use to describe their governmental system? Does feudalism describe any historical governmental system? by /u/Miles_Sine_Castrum