If you’re buying gold for the end of the world you’d be better off buying cigarettes and tiny bottles of booze.
Gold does have intrinsic value. It's used for electronics plating and for jewelry. Other precious metals can augment gold as commodities, each having different intrinsic values. An example of a metal which might have no intrinsic value in a post-apocalyptic world is platinum or palladium, which are primarily used as catalysts for emissions equipment on cars (no refined petrol => no driving => no need for platinum/palladium).
I think the statement about cigarettes and booze is correct (as well as toilet paper and ammo), except they have different lifespans and durabilities. Also, consumables will get more rare as time goes on (like dollar bills that erode, tear, burn, or are lost), whereas precious metals may keep in-tact.
But the idea that gold doesn't have some sort of special status is strange to me. People don't talk about doorknobs or topaz when they diversify from financial products (stocks, bonds, cash, etc). Cryptocurrency fails to be useful if there is no reliable electrical grid or network. Gold has for long recent history (until about WW1) backed almost all currencies, so it has significant precedence.
And jewelry is useless to me, but most people carry some form of jewelry and some cultures even store lots of gold in jewelry in case they need to run/escape. It's not useless to have a store of value shaped to fit your body.