Clearing things up
Following the Splatoon 3 Direct that aired a few days back, there was a lot of discussion about the character of Shiver. Fans paying extra close attention to Shiver thought they picked up on an interesting detail, as the character didn’t have any gender-specific pronouns tied to them. This led many to speculate that Shiver was non-binary, but Nintendo has come in to explain that’s not the case.
According to Nintendo, Shiver does identify as female. Furthermore, Shiver uses she/her pronouns and is referred to with the same as well. In other words, it seems the Splatoon 3 Direct speculation ended up being just that, pure speculation.
Unfortunately, no details were shared on why the Splatoon 3 Direct handled Shiver’s introduction the way it did. It certainly seems odd that pronouns and gender-specific terms were nowhere to be found when discussing Shiver, but it seems to have all been a coincidence.