I'd love a claim link as well, if possible. Also here's an idea: You can create a "Reward & Exclusive Content" section for your game, following "Edit game -> More -> Rewards" and add a free reward section to your game. It is claimable, so you don't need to post claim links all the time :)
Hey! Thanks for the idea. What would I put as the reward? A claimable link would be defunct after someone claimed it. So if I put it as a reward, it seems like it would be claimed and therefore I would have to create a new link and refresh the reward? Let me know if I'm wrong!
https://black-vein-productions.itch.io/nsa-intern/download/jTF0fMyZdkdci_u0tiiSD...
That's the good part, you don't need to put anything. Just make the price $0 and write the quantity you want and itch.io will create claimable links itself, whenever someone wants to claim it. Look at my game page for an example (created as a free community copy)