However, we're currently working with another OEM and are hoping to have a device of theirs meet our requirements that can be launched in 2026 or 2027. Nothing set in stone, but we're optimistic thus far.
As far as I'm aware as an outsider, the aim is a device that is compatible with GrapheneOS like the Pixels, yes.
>If you're thinking of devices shipping with it, would this fix the issue of Play Integrity/SafetyNet failing?
I think to pass this you need to be 'blessed by Google' which means being certified Android by their standards. GrapheneOS have mentioned that their CTS/CDD Android certification process holds back some of the privacy/security features (think things like new Sensors and Internet permissions etc.) implemented so they cannot can't target it.