Even if a “free” key works today, the next FM23 patch (e.g., 23.2 to 23.5) will break it. Legitimate users get free updates; cracked users have to hunt for new cracks repeatedly.

While the software has a free version that allows you to view data, a is required to save any changes you make. The Truth About "Free UPD" License Keys

If you are looking for the software, the safest and most reliable method is through official channels: Official Website

Occasionally, platforms like the Epic Games Store give away the full version of Football Manager for free, which may include access to certain features.