Taking this question out of my personal curiosity of the market and how each bull run. Ale more millionaires in the bitcoin ecosystem, via trading vs holding.
Risk management.
Trading experience/knowledge.
Size of trading capital. Etc.
Trading not been easy as you already know would mean that the tendency of losing is as much as high as that of making good ROI but for a long term holder the above factor doesn't really have significant effect on his profit in as much as he's willing to hodl long provided he started hodling at a good dip price.
Sticking to the OP's condition of Bitcoin in bull run, of which the last of such movements was seen during the ETF saga, and I tell you, traders do not always go wrong here, it is all bullish and it's about your preparation, calculation and management. For instance, like what happens in the market since the US election day, if the capital of the trader is just $500, I could have calculated the liquidation risk at about $60,000 even in an almost certain bullish condition. This is no big deal as nothing stops traders from making analysis to know their levels.