>A gold standard is a monetary system in which the standard economic unit of account is based on a fixed quantity of gold.

and

>The Zimbabwe Gold (ZiG; code: ZWG)[3] is the official currency of Zimbabwe since 8 April 2024,[2] backed by US$900 million worth of hard assets: foreign currencies, gold, and other precious metals.

>...

>Although the rate of devaluation of the ZiG may vary,[13] the ZiG has consistently lost value since its introduction, and its long-term prospects are dim so long as large grain imports continue and the government continues to overspend.

sounds like it's not "fixed" at all, and "backed by ... hard assets" just means it has central bank reserves, which most fiat currencies have.