There’s a really good chance that a person running this would incorrectly assume they have some level of security and safety approaching graphene.
It uses vendor kernels and relies on the user to monitor update channels and perform patches.
If you need security and will not buy a pixel, you are most likely best served by switching to ios.
That’s not because I feel that a person who will not buy a pixel is somehow less-than or stupid, but because ios is very secure when hardened and kept up to date.