I do not get why people are still in need of something like this, why would you ask if gold or bitcoin? I mean why would you have this kind of question in your mind in 2021?
It is obvious that gold is not the choice because it is actually quite simple to choose between them because there is really nothing that you should worry about if you buy bitcoin as well, gold is too small and it doesn't give you any benefit at all and it shouldn't really be something you want, who would want 1% a year or something, it is really small and people are quite happy about getting that tiny amount of profit yearly with gold, nobody should be getting any sort of tiny profit from this. At the end of the day bitcoin brings you a lot money and it is a much much much better version of gold as well, there is nothing to compare between them considering how much bitcoin is better.