Can you sync up Garen's Q auto attack while you're changing him?

I'm not saying you should make it less long or something like that, but when Garen slams his sword down, the sound effect can play, the sword will go through the target, hit the ground, but if you cancel the auto at that moment, nothing happens.

Just give it a QoL buff, like Jax autos or Tryndamere crits.