well, for the long term, I would also choose bitcoin, especially when my assets are quite large. After all, we can see the development of bitcoin from 10 years ago to now. The price development is truly extraordinary. Gold has also increased, but not as well as bitcoin.
However, if OP wants a safe investment, maybe gold is suitable for him. However, if he wants a slightly risky investment, then bitcoin is the choice.
Each person can certainly determine their choice when they want to invest in both assets because in general they have provided a fairly clear picture through life and also through history in the past. And people who prefer large profits, of course the more appropriate choice is Bitcoin because the price increase is always much more significant in Bitcoin, while gold only increases slowly and not in larger amounts every year. So each of us can certainly see for ourselves and choose for ourselves what we like based on taste.