Do you call out cheapskate behavior?

Let’s say you know a guy is not struggling in any way shape or form. He is clearly doing better salary-wise and is a couple years older than you are. But he’s being stingy/cheap or “frugal”. He claims to be serious and invested.

Do you next him or do you find subtle ways to let him know his cheapness disturbs you? Let’s have a discussion about cheapskates or stingy misers.