Will deleting my Steam account also revoke gifts I've sent?

I would expect that when you delete your account, 'outgoing' gifts are not lost except if there's something else in the picture, like the payment for the gift was fraudulent.

From my understanding of how steam works, when you give a gift to someone, that someone gets the license, and is now unrelated to you. There might be a trace in the system that the payment came from you, but the license to the gifted, and not to the gifter with a clause of 'gifted can use it'.

Would be like if Grandma gave you an iPhone, but she died so you have to give it back. No, the iPhone is yours even if the one who spent the money to buy it doesn't exist anymore.

The "gifts" they mention in their FAQ refer to the gifts you have in your inventory. When you buy a game as a gift, you're not forced to send it immediately upon purchase, you can keep it in your inventory. If you delete your account, you lose that unbound game license. It's a bit redundant with the mention to "inventory items"

Exemple: