Insert Data to Google Sheet

Does it need to be a separate tab, or would it be better to use the Add button or a form button? Review the documentation and see if any of those options work for you.

https://www.glideapps.com/docs/guides/core/adding-editing-forms

You can do it in a separate tab, but it would have to be a custom form, which can use up you edit usage limits. Or you could place a form button in that separate tab, but it seems pointless to have a single button on a tab all by itself.