What are the perks of de-dollarisation?

Western sanctions on Russia are leading to trade being denominated in other currencies between eg, India and Russia. Iran and China are both in on this too.

Aside from a general undermining of the US, what are the implications?

As far as I can see, some would be:

• The US ability to interfere with other countries' foreign currency reserves is severely limited (since those reserves don't need to be in dollars)
• The US ability to print endless money might come under pressure, potentially endangering its ability to spend freely on its military
• Financialisation and de-industrialisation bite harder as US financial services might become less useful and America has lost much of its advantage in actually making stuff.
• Lessened capacity for the US to exert hegemony over other states via fiscal and monetary domination/coercion (a la gramsci)

Is that stuff right? And what else is there?

PS, sorry if this isn't quite the right community, I'm new here.