Stock android better alternative for your smartphone

altrnative OSes list

 * CopperheadOS


 * PostmarketOS


 * LineageOS


 * And many more you can find here

Warning
Whatever you do don't install Gapps

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Alternative Gapps apps list

 * Google search --> Duckduckgo
 * Google maps --> OsmAnd~
 * Playstore --> Fdroid