Google Sign-In Error in the Instagram In-App Browser

The google auth method is not working with the instagram in-app, getting 403 errors and this message:

Access blocked: app's request does not comply with Google's policy.
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app's request does not comply with Google's "Use secure browsers" policy.
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Access blocked: app's request does not comply with Google's policy.
...
app's request does not comply with Google's "Use secure browsers" policy.
...