Steam is upgrading its in-game frame rate counter to be a full overlay This will provide a lot more details on what's going on under the hood with any given game, and your CPU and GPU's status too ...

Steam's Overlay Performance Monitor may be its best new feature in quite some time.

Software Platforms Steam Steam turbo-charges its performance overlay, shows you how many real and framegen frames you're getting and, oh, Proton is enabled on Linux by default now ...

New Performance Monitor with Detailed FPS Data Steam's In-Game FPS counter is now expanded to become the In-Game Overlay Performance monitor.

An Edge-powered in-game overlay is on the way with a lot of familiar features and several interesting, unique tricks.

The new Steam Performance Overlay shows you the frame rate with and without DLSS or FSR frame gen on your Nvidia GeForce or AMD Radeon GPU.

In the future, they plan to add features like keyboard shortcuts, picture-in-picture, and the ability to add a tab. As to how this all compares to the Steam overlay Microsoft is copying?