There's Already A Way To Mount Your Smartphone To A Steam Controller

Mechanism, the company behind a "gaming pillow" for the Steam Deck and a growing list of grips for handheld consoles and PCs, already has its first Steam Controller accessory ready. Valve's new controller will be available to purchase on May 4,

Transform your new Steam Controller into a makeshift Steam Deck with this accessory

When the Steam Controller launches on May 4, you may want to also get this accessory that lets you mount your phone.

This accessory can snap a Steam Controller to your phone — or almost anything else

When the Basegrip is paired with Mechanism’s phone mount, the company suggests that you can use the Steam Controller to remote-control your PC using the Steam Link streaming app
Techno-Science.net

Guide to Play Steam Games on Android or iPhone Without PC

While it is a different experience playing games on a gaming console plugged into your big screen TV, having a handheld device that you can use to play your favorite games on the go is a rage now. Android has ported and brought multiple AAA gaming titles ...
Game Rant

How to Play Steam Games on a Phone

For PC gamers with powerful setups, handheld gaming PCs like the Steam Deck may not be necessary due to their portability limitations. Utilizing the Steam Link app allows gamers to stream PC games to their smartphones, providing a convenient portable ...