No, the billions of computers does not have keyboards that produce the main key event when the button is released.

They produce the key-down event directly after whatever debounce that is made.
Besides the initial key-down event, you can then get (depending on type of key pressed) repeated key events while the key is pressed, with an initial delay and a repeat delay.
And you get a key-up event when the button is released.

But keypads where the action is performed on key release is very uncommon, and I would suspect that they are the result of not too skilled developers or not too clever product owners. In some games, actions are performed on the key-up, to let the user control how "hard" they do something by controlling how long they keep the button pressed. But that is a special case. For "normal" designs, key-up activation is a design fault.