A browser tab gives the favicon 16–32px. "LarGrr" is illegible that small, so the mark has to be the growl. The real choice is "Grr" (distinctive, but tight at 16px) vs a single "G" (crisp at every size). Open this on largrr.aurochs.agency to see it in true Futura.
Crisp at 16px because it is geometry, not a font: a circle with a gap and a bar. Reads as the flame growl even when tiny.
Read: at 16px the single "G" stays clean; "Gr" is borderline; "Grr" closes up into a blob. "Grr" only becomes comfortably legible around 32px and up. So the strongest system is "G" for the 16/32 favicon and "Grr" for the 180px app/PWA icon (Apple touch icon, home-screen), where there is room for the full growl. The flame tile carries the brand recall either way.