Future of gold backed crypto currencies?

What do u guys think about the gold backed crypto projects? I came across these 3 interesting ones. What do u guys think about it and their future?

DAU

DAU exemplifies the benefits of gold-backed digital assets. DAU is issued by Du Bois Gold AG (DuBois), a company registered and operating in Switzerland. DAU represents title to and ownership of physical kilobars of LBMA-accredited 9999 gold bullion. DAU offers investors the perks of gold investment without the logistical challenges, and is never loaned, pledged, or encumbered in any way. This policy ensures that for each unit of DAU, the corresponding kilobar of LBMA-accredited gold can always be collected, differentiating DAU from other gold backed cryptocurrencies.

Tether Gold (XAUT)

Tether Gold (XAUT) was launched by Tether. Each XAUT token represents one troy ounce of physical gold stored in a Swiss vault, and offers a stable and secure way for individuals and institutions to invest in gold digitally. XAUT is redeemable for physical gold, and users can trade it on various exchanges.

PAX Gold (PAXG)

Pax Gold (PAXG) is a gold-backed cryptocurrency launched by Paxos Standard (PAX) creators. It operates as an ERC-20 token on the Ethereum blockchain, making it widely tradeable on various exchanges. PAXG is backed by real gold reserves held by Paxos, a New York-based for-profit company, with each token redeemable for one troy fine ounce of gold custodied in vaults and is regulated by the New York Department of Financial Services.

I would love to hear your perspective on these gold-backed crypto projects and your predictions for their future.