Volatility is not yet a thing of the past, mate. Price might not be fluctuating the way it used to in the past, but that does not make Bitcoin not volatile again. As long as price still experiences up-and-down movement and it's not stable in one place, then we shouldn't be talking about Bitcoin not being volatile. Only stable coins are not volatile, Bitcoin still can't be completely predicted can only make assumptions and speculations, but you can't predict its next move.
It's in the process of becoming the thing that will affect BTC less and less - sure thing, the price still moves and moves quite well, but not as much as it may of moved during previous cycles.