In France we recognize Snoopy and people would call the whole "world" of the comics "Snoopy". "Peanuts" is unknown. I am 55 for the context.

We would somehow recognize Charlie Brown, but not by name. The other characters are basically unknown.

The reason is that Peanuts was not part of the mainstream comics books we were reading as children. Threre were two kind of them: proper books such as Astérix, and thick "anthologies" such as Pif which were a set of what Americans call "strips".