I prefer to stake and investment at the same time because that means both stake and investment can be my additional income in the future, besides my main income source.
But both stake and investment need time before we can make money, and sometimes, we need to wait for a longer time to cash out the profit because the market is not always moving as we want.
If you want to do both stake and investment, you need to have a list of potential coins which can give you the profit, and I admitted that it would not easy to have those list.
We need to analyze one by one of the coins to stake and invest so that we can get the right coins.