Hello everyone.
Unfortunately, I live in a place where my pixel cannot make a volte call natively, so I need to do some tinkering.
The one that I've currently done is this: https://github.com/kyujin-cho/pixel-volte-patch but apparently this is not enough. Which leaves me the only option to do the tried and tested way of rooting and manually patching in the settings.
I would like to avoid forking if I can because I'm not an expert in android programming.
What can I do in this case?

    richard31076 "I would like to avoid forking if I can because I'm not an expert in android programming.
    What can I do in this case?"

    Nothing, if you can't fork, you can't root. You need to sign the OS image and its updates yourself w/ the changes that allow for root.

    Also don't root and all due to security issues

    If you root GrapheneOS, you no longer really have GrapheneOS installed on your device. Rooting is not advised for many reasons. It's not supported and we cannot help with that here.

    Please refer to the link above fid02

    Ideally, someone who needs this functionality would put in the work to make this feature a reality: https://github.com/GrapheneOS/os-issue-tracker/issues/956