It’s definitely not a “rouguelike” because it lacks the number one important aspect of either roguelikes (or rogue lites ) which is random generation.

It’s not really bullet hell because while the enemies can shoot the focus is not on dodging bullets but on finding any viable way to manage the hoard, which could involve kiting or tanking, dependant on your build.

So what common elements does the genre have, if we look at games like Vampire Survivors and Brotato?

• Victory is defined not by achieving a set objective, but on surviving a fixed time or number of waves
• Shooting is automatic (you don’t have to fire, only move)
• Camera is usually top-down to help with visibility

So maybe:

2D Wave-Survival Autoshooter