Steam game listings will show support for PlayStation controllers

DualShock and DualSense controllers will get more explicit support in the Steam store and in your library.

Connect a PlayStation 5 Controller to Your Mac: Use it with Steam, App Store Games, Apple Arcade, and more. – EasyOSX

How to Connect a PS4 Controller to Steam (with Pictures) - wikiHow

Controller Support for PC and Mobile

PC Controller 2.4G Wireless Gaming Controller for PC Windows Steam, PC Gamepad with Rechargeable Battery, Upgraded Joystick, TURBO Function (Connecting to Xbox Consoles is Not Supported at this Time) : Video

Steam Makes It Easy to Find Games That Support PlayStation Controllers

PlayStation 4 (PS4) Controllers in Video Game Accessories

How to Choose the Right Game Controller for Your PC

Backbone One PlayStation® Edition - iPhone Game Controller

How to play SWTOR with a PS4 Controller on Steam