You're referring to a specific version of GOM Player!
In 2015, Gretech Corporation released GOM Player Plus, a premium version of the software that offered additional features, such as ad-free playback, priority customer support, and exclusive content. gom player plus 23425304 32 64bit portable
The portable version of GOM Player, like the one you mentioned, was likely created to cater to users who prefer to carry their media player with them on a USB drive or other portable storage devices. You're referring to a specific version of GOM Player