+1 for recommending Fossify over ‘SimpleApps’
Extending the reply for ‘Sandboxed Play Store … F-Droid … Aurora Store’ -
I’d recommend you have both - F-Droid and Aurora Store. If you need to access the Play Store subscriptions, then you’d need to install Play Store as well.
Not as part of core GrapheneOS, but an app called “Private Lock” can detect sudden force via accelerometer and disable the fingerprint based unlocking for next unlock.
But yeah, an erase passcode feature with opening a decoy profile would be a great feature to have.
E: grammar