I had no luck at all with screen protectors for the V30 until I purchased the kalibri Tempered glass screen protector.
https://www.amazon.com/gp/product/B...ag=hawk-future-20&ascsubtag=UUacUvbUpU6109843
It has one favorable review which I wrote after successfully applying to the phone. No bubbles or issues at all.
i cant find a decent screen protector. its either a flat glass piece that is short, or reduced sensitivity, or too thick, or peels up on edges.
i wish manufacturers would go back to flat screens.