Crying is a feminine trait, especially when you're a man people rely on you to be strong and crying will freak them the f out because you're meant to be the pillar of strength.

That's why you do it out of sight, in the dark, alone... completely by yourself.

This is from a general perspective. Two situations are excluded here:

when you cry out of Allahs fear

when you cry for the passing away of a loved one

There’s no reason why you should be emotionally wailing otherwise. Even in these situations, it is best to weep in seclusion

If you get any another situation from the sunnah of the Prophet ﷺ which refutes the above, I’ll take back what I said.