As someone who started with Virtua Fighter with VF4, it was VF4: Evolution that locked me into what has become my favorite 3D fighting game from a gameplay level. VF4 Evolution is the ultimate entry point of the series and, dare I say, the genre as a whole. What the game lacks in Story Mode, it makes up for in its Quest Mode, a mode that acts as a simulation of the Arcade Scene by allowing a player to take their character through various arcades and tournaments to play against the ghost data of different players, including many recognizable VF names from the scene at the time, creating an infinitely replayable and rewarding experience.
The biggest benefit to VF4: Evolution being preserved and revived on GOG, however, is the in-depth Tutorial features present in the game. While most games settle on teaching you the basics, VF4: Evolution goes above and beyond by setting up lessons centered on intermediate, advanced, and character-specific tools, techniques, and combos. The VF4: Evolution Tutorial is, with no hyperbole, the "Gold Standard" of Fighting Game Tutorials, providing an understanding of fighting game mechanics that extends even beyond the Virtua Fighter series with evergreen lessons that will level-up any player remotely interested in the fighting game genre.
While the Virtua Fighter series has progressed beyond VF4: Evolution with the release of the VF5 series of titles (5, 5R, 5FS, 5US, and 5REVO), VF4: Evolution remains a powerful foundational building block for the series and fighting games as a whole. Without VF4: Evolution releasing on the PlayStation 2 in 2003, there's no telling where my own fighting game life would be, but I do know that, as a result of this game's release, I've stuck with the series for over 20 years, and now, I do commentary for the scene and am able to play alongside some of the best players in the world. VF4: Evolution stands as the single greatest entry point in fighting games, and seeing it again is a service to the genre.