Steam introduces the ability to add free games to the library without the initial download

A new useful feature has appeared in the Steam service, the addition of which Valve has not announced.

This is about

the “add to library” button. This option will allow you to add new games to your Steam library without having to start downloading.

The introduced function can only be used when adding free goods (games and add-ons). Paid projects still appear in the libraries of gamers only after paying their cost.