My reading group spent way too long arguing about this last month. In most urban fantasy I’ve come across, a werewolf’s size definitely changes their position in the pack, but the interpretation varies wildly. Some authors treat it as a sign of superior strength and dominance, putting them higher in the hierarchy almost automatically. But honestly, I think the more interesting takes are the ones that subvert that. I just finished a web serial where the protagonist is a big, soft-looking werewolf who’s constantly underestimated because he looks 'gentle.' His pack sees him as the heart, not the fist. He ends up being the mediator because his size makes others feel safe, not threatened.
It plays into themes about power being more than physicality. In a gritty urban setting where packs might need to blend in or negotiate with human authorities, a 'fat' werewolf could be a strategic asset—less obviously 'predator,' more approachable. Conversely, I’ve also read books where it’s a source of insecurity for the character within a very traditional, strength-based pack structure, creating internal conflict. The pack dynamics shift from brute force to more complex social maneuvering, which I find way more engaging than the usual alpha posturing.