@ANNOx:
In Content filtering You may add Ublock Origin extension to Chrome browser, or even better use full system adblocking tool such as AdGuard (paid) or Blokada (Free).
Also You may use a VPN when connection to public Wi-Fi's
About Backup, You may also use Android Settings -> System -> BackUp
Please kindly reflect Your changes editing Your config, and announcing them here, thanks for sharing
