From another comment - I switched phone to Pixel and it has worked well, with a separate profile for apps that require Google Play Services.

> GrapheneOS on Pixel and Pixel Tablet have been anomaly free, but Android tablet usability is << Apple iPad Pro.

iPad Pro with Magic Keyboard and 4:3 screen is an engineering marvel. The UX overhead of Pixel Tablet and inconsistency of Android apps made workflows slow or even impractical, so I eventually went back to iPad and accepted the cost/pain of re-imaging periodically, plus having a hot-spare device,