What is the best low-effort option for basic privacy and decent security?

As the title say. Even though I appreciate I am not in a position to struggle and use some obscure apps instead of google maps which I use often. And the same apply to other functionalities. However I would still like to limit data collection about myself and preferably sandbox apps that I use. I would definitely like to prevent any third-party entity to profile me by my usage of internet at least at some basic level. I can spend …

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