Bitcoin is often compared to gold, but there are efforts to develop a lightning network system for Bitcoin where transfers are very fast and fees are very low, but it is debatable how reliable and secure it is. If I make a positive distinction, Bitcoin is unrivaled in the unofficial transportation of commodities. For example, the Venezuelan government confiscated gold from citizens trying to flee Venezuela. However, with Bitcoin, people could easily and safely take their savings out of the country.
In terms of reserves, gold requires high costs and security measures to store and safeguard it, but because it is a physical asset, you can lose your savings in a natural disaster or war. This can also be the case with bitcoin, but bitcoin can be very securely stored in cold wallets. Another and most important feature of bitcoin is that it can be transferred and stored anonymously. In repressive and dictatorial countries, people can safely carry and store their savings in the form of Bitcoin in case their savings are confiscated. Bitcoin can be an alternative solution in countries where public order is weak. Bitcoin is not the digital gold of our time and has many options that differentiate it from gold.