The most interesting thing about gold is its distribution of uses. By 2020 (I don't have the most current data but I don't think it has changed much in a couple of years) the distribution was as follows :
- Jewelry - 47%
- Industry - 8%
- ETF - 12%
- Monetary - 9%
- Bullion and coins - 24%
Total gold mined by mankind - 208874 tons
Produced after 1950 - 2/3 of the total was mined.
That is, the main "reserves" or almost half of all "marketable" gold - on the hands of private individuals in the form of jewelry, only 1/4 - in the form of gold reserves of countries.
Plus we see that technological progress allows to mine more gold. I assume that new technologies will allow to mine it more, at the expense of extraction from previously unavailable or unacceptably expensive resources