Gold is pretty useful for maintaining purchasing power of your savings. One big advantage is it's portable. Right now a pound of gold is closing in on $100,000. A cell phone weight of gold (200 grams) is about $30,000 of purchasing power. If you had to suddenly flee and wanted to take some purchasing power with you, you could easily do it with gold. Or if you wanted to make a major purchase, it would be easy to do it with gold... if we had a precious metals based system.
Silver is much less portable, so it's proportionately less useful for transactions. Silver is closing in on $70 per troy ounce. A cell phone weight of silver is about $450 right now. It would be useful for buying groceries or regular daily life transactions, which was its main use for centuries.
The price of silver in US $ was stagnant for many years. All through the early 2000s silver was $15-20/troy ounce. There are lots of people with many pounds of silver piled up in a safe or trunk or something because of the 2008 financial crisis or 2000 dot com implosion.
The main downside of precious metals is the US financial system is funny money based and there's a lot of waste associated with moving in and out of the funny money system. You pay a premium to convert your paper money to gold and pay a premium changing back from gold to funny money. The premium to buy gold is about 6% now, which is absurd. The premium to sell varies quite a lot but can be high.
The banking system is really hostile to gold and silver because it's competition. The banking system has a monopoly on numbers that it zealously guards through corruption and violence. The US government is in on it. At some point, the US government will charge a huge tax on gold and silver sales and throw know your customer rules at anyone who does gold/silver exchanges because the US government is trash and bankrupt. They'll probably do that before they rob people's 401(k) accounts but that's inevitable too.
A good way to look at the banking system, or the government is those people are all in competition to be the king of hell. That is, they're the Hades/Pluto/Sauron archetype. There's a lot of libertarian types who imagine gold and silver help them escape that sort of tyrant or the corrupt hell/death system, but a piece of metal is pretty firmly in the world of dead stuff. Metal took the place of stuff like seeds or slaves in the ancient world.
There's a lot of good reasons to rotate out of gold and silver if you have a hoard purchased at early 2000s USD valuation. Convert it to chickens or tools, or maybe long-term maintainable cars from the 90s up to the early 2010s.