It's the real Godzilla. The 1998 creature was just its juvenile, malformed offspring.
The Open Matte version of Godzilla (1998) has become infamous among fans, as it alters the original composition of the film. The version was created by removing the sides of the image, effectively zooming in on the action. This change affects not only the visual aesthetic but also the overall pacing and balance of the scenes. Godzilla 1998 Open Matte
In Open Matte, you can sometimes spot incomplete renders at the bottom of the screen. You might see the "claws" of a raptor disappearing into nothingness, or a distinct cut-off line where the CGI water meets the real water. For visual effects buffs, this is a treasure trove of "making of" documentary material; for the general viewer, it breaks the immersion. It's the real Godzilla