If you have five hundred thousand USD its better to save money in the bank. Once you save your money in the bank with higher amount of saving its earn a high interest (e.g one million USD saving in the bank with interest of 3%, your 1M USD earn three hundred thousand USD).
If the interest rates were up, a bank wouldn't be so bad because of how safe your investment is. Not the returns of a blue chip stock, but decent returns if it's enough money. There is a lot more risk in a stock, but way more potential gain. Them bitcoin, crazy volatile with unlimited upside. I guess the compromise is having a little of all of it.