How famous/well-known is Muhammad in the place you live in?

I'm asking this question because after reading through some threads, I'm surprised that a sizeable amount of people have no idea who Muhammad, the prophet and founder of Islam, is. Like I mean in the sense where they would go like "who is that? Never heard of him".

The reason why I'm surprised is because he is supposed to be like at least top 5 most influential and famous figures in all of humanity, as well as the fact that Islam is the second largest religions, affecting the majority of 50+ countries. And yet some people have no idea about him, but they do know someone like Jesus.

I know reddit isn't a sample for real life, so I ask this: For non-muslims who live in non-muslims areas, do people in your area know who Muhammad is? It doesn't have to be their opinion about him, but just aware of who he is. I'm genuinely interested how common this is and why it would be the case.