Ironically, to this point most of the game-related use I have had for the Steam Deck OLED has been to play games that are best played with a keyboard and mouse.
For example:
Total War: Three Kingdoms is listed as Unsupported on Steam, yet it (mostly) runs well enough - though it's best to play on an external monitor with mouse and keyboard.
More recently, however, I installed my first Deck Verified game:
Spider-Man Remastered. But of course, while you
can play it in handheld mode, you also have the option to play it in docked mode with a separate controller.
And what might be a good choice of controller for that particular game?
This is the Midnight Black colour DualSense.
Notably, when you connect this controller to the Steam Deck (which can be done either via type-C USB or via Bluetooth), SteamOS replaces with A, B, X, and Y buttons on the interface with the four PlayStation buttons!
Also, on both the Steam Deck's own controls and on the external controller, it is possible to swap the button configurations to the Nintendo standard input: B swaps with A, while X swaps with Y.
Plus, the trackpad on the DualSense works as a trackpad in desktop mode, if you wanted to use it for that.
And you can manually adjust whether or not desktop mode activates the controller's built-in microphone and/or speakers. (At least when connected via type-C USB; I gather that not all of the DualSense features work on Deck via Bluetooth.)
Do any of you have an external controller for use in docked mode - and, if so, which one do you prefer?