This is the most reliable method. If you have an Xbox Game Pass Ultimate subscription, you can stream UFC 4 directly to your PC browser or the Xbox Windows app.
The site may be selling an Xbox or PlayStation key, and the "PC" tag is used as clickbait or to indicate it can be played via the cloud.
Some sites offer "keys" for unofficial emulated versions. These are not supported by EA Sports and can often contain malware or unstable software.
