Nope, hodl isn't the only strategy for Bitcoin but it's for those who are scared of trading it. Only those who want to play safe go that route. Otherwise, one can safely trade to increase their quantity if they've the trading skills for it.
I know that I can't stake with bitcoin.
True, and sadly so.
hodl it is a long term investment ,a strategy that can grow btc
Sorry, hodl doesn't grow or increase your Bitcoin. It only
increases the value in price (that's if a bull rally occurs) and it can also
decrease the value in price (if a bear rally occurs).