Most Helpful Guy
A player is a guy that will do or say whatever he has to in order to get sex.
Because that's literally THE requirement to be a player I say no most guys are not players to some extent. But I do think most people in general will lie in small ways to look like a better partner, while not lying outright about who they are or feel.
Like a girl is most likely to lie about her sexual past and some guys she's been with. Skewing the relationship dynamic with certain guys, because she doesn't want to scare off a guy she wants now. Just like a guy is more likely to make small lies about thing like "loooving" her friends, cat or dog. Or similar interests when he doesn't really like those things much.