Making links in app 'invisible'

Hi, I am using google apps script to communicate with Google spreadsheets. The problem is, I have to change the sharing settings of Google sheets to ‘anyone with the link can edit’. This is not ideal, and to prevent data loss in anyway possible, I would like to know if there was any way we could make the url hidden in the builder, so no one can see the url when they mess around with my apk.
Any ideas?

Where do you save the link?

Is it same as firebase URL and api key?
If yes then you can use obfuscated text to hide them.

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And if you want one more level of security use Cryptography as well in order to encode the URL.

I just enter it into the extension properties.