GrapheneOS now has https://grapheneos.org/usage#sandboxed-play-services providing the ability to install Play services in a sandbox. The core functionality is already working in the Stable/Beta channel releases. You can install it in a dedicated profile to avoid apps in other profiles being able to use it.
GrapheneOS is fine with people using Google apps and services but not integrated into the OS and they should be on the same level as other apps and services without any special privileges/access. We're working on making this a reality. Google could implement the fallback code paths we're providing for Play services themselves. All we're doing is teaching it to do what it should already know how to do. Perhaps a regulator can force them to unbundle their services and make them usable anywhere.
GrapheneOS is fine with people using Google apps and services but not integrated into the OS and they should be on the same level as other apps and services without any special privileges/access. We're working on making this a reality. Google could implement the fallback code paths we're providing for Play services themselves. All we're doing is teaching it to do what it should already know how to do. Perhaps a regulator can force them to unbundle their services and make them usable anywhere.