This is an error in our website, G-Max Smite is the G-Max move of Hatterene, not Meowth.
A Fairy-type attack that Gigantamax Hatterene use. This move confuses opponents.
This is the SwSh description of it. Bulbapedia also says this:
G-Max Smite (Japanese: キョダイテンバツ Kyodai Smite) is a damage-dealing Fairy-type G-Max Move introduced in Generation VIII. It is the exclusive G-Max Move of Gigantamax Hatterene.
As such, Meowth has only 1 G-Max move, and that written in G-Max Smite's page is an error.
Hope this helps!