AlphaElwedritsch You have two situations where the device you're buying is insecure.
Either the Pixel 5 with GrapheneOS that is EOL and cannot receive full updates no matter what OS you run on it, or the "cheap phone" that's likely extremely insecure from the get-go.
We are not going to be misleading interested users about the degree of security we can provide on EOL devices.
This is an issue that'll largely resolve itself with time, given that current generation are supported for 7 years from launch. I imagine that one of those Pixels 4 years into its lifespan will be fairly affordable, all things considered, especially if bought used.