Hello all. I have a question like in the title, does unity change something with my imported object when I previously assinged IK modifiers in Blender to it while not being a humanoid type, or I will have some type errors/problem i future beacuse of that or Unity will make some of its magic and it’ll work just fine? Thanks 
IK keys from blender and other animation packages work fine in Unity. If you see an error - bake the IK down into the bones before exporting to Unity.