Sorry I meant how they removed being able to buy a game as a gift and store it in your inventory. I used to do that a few times when games were on sale and hold onto it for some reason. I think now the only way get get a giftable game in your inventory is to buy a multi pack of games that sell it.
https://steamcommunity.com/games/593110/announcements/detail/1301948399254001159

What's weird though is while they removed sending a gift to a email from the checkout, you can can still do it if the game is already in your inventory. Which I'm thankful for as it would of been harder for me to do a giveaway for those games had they removed it.