You can hodl bitcoin at any time, whether at the bearish or bull run market. What matters most at the mentioned season is, are your seed phrase is kept in a safe place, whether are you applying a DCA strategy, investing with spare money, have a long-term investment plan, and have your crypto assets stored on exchanges rather than on the crypto wallet you have the seed phrase to.
If you can do all these mentioned, I believe you will not be bothered by when exactly suits an investor to hodl bitcoin because they can hodl it at any time they feel like