Nvidia’s desktop software situation has felt disjointed for a while. There’s the Nvidia Control Panel that controls many basic display settings, but is separate from the GeForce Experience that requires an Nvidia account to download driver updates and automatically optimize game settings for performance targets.Starting today, all of that changes with the brand-new Nvidia app, which merges the Control Panel and GeForce Experience into one, along with connections to other Nvidia apps and features. The user interface looks like it got a complete redesign, and perhaps most importantly, you’ll no longer need to log into an Nvidia account just to get driver updates through the app. Nvidia says the login is optional now, meant for users who want to redeem bundles and rewards.The most interesting part is a unified GPU control center in this new Nvidia app. It essentially integrates the GeForce Experience optimal game settings and Nvidia’s separate controls games through its Control Panel app....