You have 4 in your library, but only 1 is installed; it's Call of Duty. Since there's no need for physical media anymore, the footprint of games has ballooned to the point where if you want to install CoD, it's going to cost you 2TB of storage. They threw in 8k textures just for the 0.0001% of players that actually have an 8k TV, and there are a lot of textures since the Big Chungus update which introduced 255 different coloured Chungus textures for every weapon and weapon attachment combination in the game.