Almost everything just works after installing sandboxed Google Play Services. For a few apps you have to tweak a setting to turn off some of GrapheneOS’s exploit protections. But I’ve found very few that refuse to run, and nothing indispensable. If you don’t like your main profile having Play Services you can set them up under a second profile or a private area and keep the apps that use them away from your main profile.
Almost everything just works after installing sandboxed Google Play Services. For a few apps you have to tweak a setting to turn off some of GrapheneOS’s exploit protections. But I’ve found very few that refuse to run, and nothing indispensable. If you don’t like your main profile having Play Services you can set them up under a second profile or a private area and keep the apps that use them away from your main profile.