Would you freeze a cooked piece of Salmon with Garlic, Lemon, and Dill for later use?

If I had to, I would use less garlic as its flavor increases when frozen.

sure I'd freeze it. why not? If there are lemon slices involved, I would nix freezing those, but otherwise, I'd wrap it in plastic wrap and put in the correct size of zip lock freezer bag.

Wrap in plastic wrap, foil, and then a ziploc bag. There's no downside if the alternative is throwing it out.

Only if I had to: for example, if I was going away for a few days and did not have the time or appetite to finish the leftovers right away! But if I did have to freeze it, I would wipe off the seasonings then wrap appropriately. For subsequent use, I'd defrost gently, then probably flake it, mix with some mayonnaise, and use it as a sandwich filling, pile it on a bed of lettuce, or stuff an avocado.