I'd be happy too if I found out my child was getting a pardon.
Hunter was already convicted of federal charges, https://www.cnn.com/2024/06/11/politics/hunter-biden-gun-trial-verdict/index.html and it would be really bad optics for Joe to pardon. It's 100% Trump's decision. Pardons can also be used before conviction, of course if Hunter picks up a state charge then it's out of Trump's hands.
Here is a much better explanation and demonstration of the same thing from a government investigation. It's much worse than you know.
Check'd