I agree about the danger of fiat price collapse, but this does not mean that gold price will be hgher in future. Gold is basically useless except for making shiny decorations. Of course it is scarce and it was the universal symbol of money for many centuries, but that does not guarantee anything.
Gold price, as well as cryptocurrencies and fiat money, is backed by faith. Gold current inflation is low and can´t be hacked, and these properties are interesting, but that does not provide any guarantee either.
Actually gold have good many industrial uses but isn't being used because of the price. But besides that the most important point is that you don't need a third party or tech to conduct a transaction with it. No money changer to rip you off isn't that great... Until cryptos is proven bullet proof I think gold still has its place at the top.
The only physical property interesting for industrial uses that gold clearly surpass other metals is electrical conductivity. However really good electrical conductivity is only necessary in electrical contacts, and a really thin layer of a few atoms width is more enough in that case. Copper an aluminum are almost as good and much more abundant.
Yes, no third party is needed. But the same happens to every other precious metal or gemstone.