Well if the ability has reached the server before the other stun it will execute or be cancled. However if the stun reaches the server first the server will treat the ability that was used as never really used and refunds it.
You can read and see clips from people that gkt hoocked, stunned or hacked out of doom’s mei’s ice or Zarya’s bubble the diffrence is hack doesn’t force stop these abilities.
You can force hack people in these abilities with the workshop and they won’t break because both are allowed to go though but hack doesn’t cancel them the outcome is what we see. Hook and stun on the other hand will break/cancle the ability and they won’t be refunded they go on cooldown.
If hack would have lentiency it would break in my first clip.
And in my second and third there is room for lenienty but only about 0.016-0.032 which are one to two ticks and would be unnoticable.
And hack actually had a lenienty once but they completely patched it out and I don’t think they secretly patched it back in
Thats from the 15 mar 2018.
Im thrilled to see your testing result too tho.