Best wide angle lens for nikon z?

Here is what the site says about that.

From Laowa 15mm f/4 Wide Angle Macro: Laowa 15mm f/4 Wide Angle Macro: A macro lens by Laowa for Full frame cameras, 15mm f/4. An ultra-wide that focuses to 1:1.

From Laowa 15mm f/4.5 0.5X Wide Angle Macro: Laowa 15mm f/4.5 0.5X Wide Angle Macro: A macro lens by Laowa for Full frame cameras, 15mm f/4.5.

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