The current library for your games in Steam is… fine. It’s fine. It offers everything that you absolutely need in a library system. It also could run a lot better, which is why Valve is starting a new opt-in beta for the new library interface starting on September 17th. (It’s almost like there are suddenly new digital retailers in the PC gaming arena that might make Valve want to really re-evaluate whether “good enough” is good enough any longer; that’s an epic theory that might sow some discord, we know.) This test is available to everyone with an account, so you don’t need to worry about any sort of special access, but there are numerous features that may help players remain engaged with their respective collections.
Of particular interest to MMO players are the new Event systems (allowing the library to point you to titles which have special limited-time events running or otherwise could use extra attention), the landing page that reminds you if anything has recently updated, and checking what games your friends have been playing recently. It’s a good way to keep your eyes on the overall cadence of what’s going on with gaming, but it also gives useful tools for staying connected with your friends. It’s a multi-function update, in other words.