Do i pose the root bone too? So this is more like a best practice question. I tried doing a walk cycle by creating a walk action and then repeating it in NLA editor over a root bone position change. But this looks very mechanical, and every now and then I'll see sliding back and forth. So now i usually do pose by pose . But in this scenario, my root stays at the initial spot in the scene, while the rest of the body/bones is all over the place. Is this the right way to do or should I always make sure that the root bone is always with the rest of the bones?
When you create a walk cycle in Pose mode, don't move the root, keep it still, this way, when you'll be back in Object mode, you'll be able to move the whole armature and the root won't go back and forth, it will comply to the animation you will give it in Object mode (like typically follow a curve).

You can move the root bone if you don't plan to move your object in Object mode, but in this case it generally won't be a cycle.