When we opened the pane on the left, we saw a few tabs preloaded there. Among them is one titled Render Library. You can probably also see a couple of horizontal arrows used to scroll the tabs when there is not enough space in the panel to show them all. While working in Studio, we spend a lot of time adding objects to the scene and moving them around. In proportion, we spend much less time rendering and managing the rendered images. It makes much more sense to dedicate screen space to often-used tools than to panes that are rarely, if ever, utilized.
While rendering the images, the filesystem of the computer is what we want to use to manage the files; after all, that is the reason for having a filesystem. The Render Library pane is an attempt to manage the rendered images inside Studio, but in reality, it doesn't do much and it gets in the way of proper file management. Therefore, the Render Library tab is of very limited use, and we can instead use that space for...