If you are facing same issue where Google reCaptcha doesn’t match your form width, here is the quick hack. Put this CSS in your html view or in common style sheet, depends how you are using css (inline or css files).
.g-recaptcha {
transform:scale(1.06);
transform-origin:0 0;
}
Before:
After: implementing css
There could be other solution for this, but for now this works for me.
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