What percent of your investment portfolio is in Bitcoin?

I found a sub here that is asking for investment advice. He says that around 40% of his portfolio is in crypto though he hasn't specified which coin.

When I read the advice from Redditors, someone said that only 2-5% of your investment should be in crypto considering how volatile it is.

Well, I agree with the volatility of crypto, but personally I have 20% of my portfolio in Bitcoin alone but I am now actively stacking more. What are your thoughts?