https://lifehacker.com/tech/phone-security-before-attending-protest
9 phone settings to change before attending a protest
- Turn off face and fingerprint scanning
- Limit location tracking
- Turn off previews and notifications
- Adjust screen lock time
- Enable app pinning or Guided Access
- Use a SIM PIN
- Sign out of, hide, or delete apps
- Turn on Lockdown Mode or Advanced Protection
- Protect your privacy after a protest