From the value itself and you can see it by the numbers. Bitcoin is limited and can vary its price over time so it is considered as gold by many.
Many people are treating it and making it as a store of value and a way to earn profit in the market.
Bitcoin is the start of digital investment or a digital asset like gold, before anything else like buy and sell, bitcoin is the first digital asset.
Yes, in my opinion, Bitcoin not only has some of the characteristics of gold, but also has its own unique advantages. Bitcoin is more suitable as a store of value than gold, and it is not controlled by any single force.