What is an Alpha dude?

Excuse me, but could you elaborate on the term 'Alpha dude'? I've heard it used in various contexts, but I'm not entirely sure of its precise meaning. Is it referring to a dominant or charismatic male figure, perhaps one who exudes confidence and assertiveness? Or is it more nuanced than that, encompassing qualities such as leadership, ambition, and a strong sense of purpose? I'd appreciate your insights on this matter, as I'm interested in understanding the term's full implications.