Inflation hits cash savers. Cash is currency, not a store value.

Durable goods are a form of savings.

There is no nonperishable good.

Most everywhere you're expected to pay taxes for land, hardware gets used up and requires maintenance etc. Resources can get obsolete and lose value that way too.

So this strategy is not long term savings either.

Precious metal.

that's the reason, the article also gives as an advice for savers to invest into income producing assets which also produce proportionally more income as inflation rises instead of sitting on cash.

There are no such assets. Unless you consider slave labor one of these.

There's only so much you cannot increase wages to compensate before people will take matters into their own hands.