Holding can be a good way to make a profit in the future but that will need more observation about what coin we should hold. It is clear that holding bitcoin, ethereum and bnb can be a good way of holding the coin, but do not forget that altcoin will always be behind bitcoin, so you need to buy at a low price to prevent the dump that can happen to the market. But if you can not buy at a low price, you can just buy at a low price and hold it but always manage your emotion, especially if you always check the market price.
Look, I'm a holder here so I can't speak enough about how good it is as a strategy, including with DCA regularly, you can keep a day job, do your life as normal and enjoy the best of both worlds (be a regular guy not spending all your time in crypto but still reaping the benefits of crypto).
But this applies only to BTC and maybe ETH, and a select few coins. Everything else is a big, big gamble.
I think that is work for the holder as they do not follow the market movement every day and only check the price occasionally. They do not have to intend to trade because they do not have much time to analyze the coin's movement. When you decide to be a holder, you should have the other income sources to live with that and only wait for your investment to grow in the future. By using that way, I think you do not have to bother to confuse the market fluctuation.