Personally, I don't see any real links between gold and fiat these days. You say that fiat is a rolling devaluation against gold but I don't see how gold is particularly different from anything else, for example, crude oil. What about petrodollar after all, huh? Fiat is depreciating against everything which is anything in terms of value. Apart from that, I don't really feel you can so easily equal gold and crypto. The latter is more like fiat because they share the same trait or fault, lack of inherent value. The recent magnitude 10.0 cryptoquakes that shook the market unequivocally proved that thing, end of story.
"Rolling devaluation" is different from simple inflation in the price of everything else, in that the price of gold is suppressed by the elites through derivative trading most of the time, but must be allowed to rise dramatically during times of financial stress. This is in effect no different from the gold standard, but with frequent devaluations. (Suppressing gold appreciation against state money was the real purpose of the gold standard.) The visible difference between devaluation and inflation is that devaluations were always denied strongly beforehand and implemented overnight, and that the gold price would stay the same for a long time afterwards.
It's highly interesting that the official gold-standard rhetoric stated that gold was money, but that was the time when gold earned zero return for very long periods in the 'core' countries. Today, the officials say gold is nothing, but it's during this period that gold went up 30+ times.
The petrodollar was just a scheme to ally with oil-rich dictatorships to prop up the value of the dollar by accepting only dollars for oil. Needless to say, this particular market manipulation has had more than its fair share of side effects.
'Inherent value' is highly misleading, because even gold doesn't have enough 'real' use to justify its current value. The monetary value of anything is always subject to convention and crowd psychology. (Because money is ultimately just a protocol.) The elites have a lot of power because of this, BTW, but that power has been spent by issuing money and debt to benefit previous elites.
The meaningful dividing line is not the physical form (or 'inherent value') of any money, but state-issued vs. state-free, today. (You could argue there is also a bank-issued form.) Natural monies (gold, silver, Bitcoin) don't carry the inherently destructive incentives built into human-issued money. That is what makes the real difference.