> I mean this one is just reality. I’m not sure Garfield is a figment of Jon’s imagination

It's not reality. Hobbes it's not unambiguously stated to be a figment of Calvin's imagination either.

That's a fine interpretation but it's not canonical. Watterson wanted the ambiguity, as Wikipedia mentions (sorry, I don't have the interview with the direct quote where Watterson states this):

> "[Watteron] gave an example of this in discussing his opposition to a Hobbes plush toy: that if the essence of Hobbes' nature in the strip is that it remain unresolved whether he is a real tiger or a stuffed toy, then creating a real stuffed toy would only destroy the magic."

Garfield is certainly (meant to be) real, but I've never seen a strip that confirms that Jon can actually hear Garfield's thoughts. I think that's why Garfield minus Garfield works so well.