Gold does not have a clearly total supply like Bitcoin.
It is easily portable like Bitcoin.
You need to have vaults to store gold bars.
I don't think it is as portable as bitcoin. Carrying 100k usd in gold may be quite problematic, and as you said the storage is a lot more complex than using a bitocin wallet.
Gold can be stored physically in vaults. We can open accounts have have credited gold numbers in balance but they are just credited number and we have to rely on banks, vault companies to secure real physical gold bars.
We never know what will happen with them
You're talking about the physical rather than gold and bitcoin.
I see op is not talking about the physical nature of gold and bitcoin, but more inclined to the market concept embraced by bitcoin and gold.
the concept of the market, if gold goes down if the asset is not sold, then there is no loss and can be sold when the price returns to normal, as well as the concept of bitcoin.
Bitcoin is best. Even companies digitalize things, you will not have same level of security, privacy and portability with gold as same as what you can easily have with Bitcoin AND non-custodial wallets. Remember with non custodial wallets, not with custodial wallets or centralized exchanges.
Yes, Bitcoin has more unique advantages over gold. The government can pass laws to prohibit gold from becoming currency. But it is difficult for the government to prohibit the circulation of Bitcoin. Bitcoin will become a truly free currency. It cannot be controlled or banned.