I actually thinking that gold possibly on its ATH already, right at this moment.
Although countries are switching to gold for their reserve, I don't think they can break free from not using USD, moreover crypto has allowed USD to be used widely across the globe in flexible manner through stablecoin which make up for these countries' attempt to not use US dollar because guess what, now their citizen holding dollars through crypto stables. see the trading volume of stables and you'd be surprised.
I would not worry for USD to lose its dominance for at least another 10 years. it's still going strong.
Regardless of whether gold prices hit an ATH or not, central banks will continue to buy gold because they see it as a safe haven that helps stabilize the economy. They buy gold to secure the economy, not to speculate like us, so they don't care about the price of gold.
But I agree with you, no matter how much the demand for gold increases, the world cannot eliminate the USD in the near future, it will still be the world's currency for the next few decades.
However, USD is still strong, accounting for 57% of global foreign exchange reserves but not as strong as you might think. USD's dominance has dropped from 66% to 57% since 2015 to date. This ratio will continue to decline in the coming years as BRICS accelerates de-dollarization.
https://wolfstreet.com/2025/01/05/status-of-us-dollar-as-global-reserve-currency-usd-share-drops-to-30-year-low-central-banks-pile-on-other-currencies-gold/