Errr... 'fiat' bad... right?

So here is a method for fiat to continue?

I thought the ENTIRE monetary revolution was to get rid of 'fiat' and go gold backed, so the ORIGINAL Rothschild banking system - give us the gold and a small fee, give this 'note' to our rep at your destination so you do not have to travel with gold and be robbed - could be reestablished not the - we'll just print unlimited amounts of paper 'notes' system it became... ie 'fiat'.

Digital money is still not 100% safe - the person(s) creating the program can also create back doors, or base programming that allows the system to be hacked... we are seeing this with crypto.

Perhaps I am misunderstanding the meaning of the use of the word 'fiat' in this context?

I keep feeling, that at some point, to become 'soverign' beings, we will also have to give up following the big accounts too... part of the weaning off process...?