Something I just now realized with Gavv is I think it's the first lead Rider in Reiwa to have a protag's killed a lot. HumaGears can be resurrected so Zero-One has a single kill to his name, Saber killed three guys total (The rest of the Megid were from what I can tell completely artificial and not truly alive), Revi killed a few of the Deadmans gang but the inner demons similar to the Megid aren't really living things, Geats killed like three guys total on screen and that includes the movie, and Gotchard only killed Glion.

Gavv's killed scores of Granute, and they're not artificial lifeforms - they're fully sapient, living people just from a different dimension. And he has no interest in stopping, he knows he's fully in the right to do it even if it seems to have disappointed him early on. He's basically Reiwa's Uso. Kind of interesting given he's also the most innocent/peppy of the bunch.