Please have a look at this https://tube.privacytools.io/videos/watch/13021f2e-2628-42e1-b5eb-db4851c268bc
/e/ can be a good option if you don't wanna tinker with your phone and want an out of the box experience.
But if you're up for it, you can flash custom ROMs like lineageOS, calyxOS or grapheneOS.
The /e/ software is just a skinned version of lineageOS with microG, so both are same but looks different.
LineageOS have some security drawbacks that calyx and graphene doesn't have. These drawbacks may not affect you if you have good security practices, but you should know about it.
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