The method is sophisticated. Most modern fixes work by interfering with the communication between the game and Steam, acting as a "proxy" or "middleman" for API calls. Here’s a breakdown of the common techniques:
Even with a proper fix, activation can fail. Here are the most frequent issues: steamworks fix activation
Select all the extracted files from the Steamworks fix folder. Drag and drop them directly into the main game directory. When prompted by your operating system, choose 5. Launch Steam The method is sophisticated