I've hide my API key inside .env file in my React app. And I used it through process.env. But When I go to network tab in developers tool of google chrome and check requests there I can see my API key present in the request URL. Therefore my API key is not secured. Anyone will able to get my API key. How can I hide my API from that place as well?

There is no way to hide the key on the client-side.
My suggestions:
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