OAuth consent screen setup issue, when integrating with existing firebase project


I am new to make, and as part of our workflow automation requirement, we are trying to make a connection between Notion database’s row-level updates and our primary database which is Firestore (Firebase). The issue we are facing is when it comes to setting up the OAuth consent screen on Google Cloud console, it asks for us to undergo verification process. I am not sure why we are being asked to verify. Your documentation also says that we don’t need to go through this step.

Please note though, that we already have an existing Firebase project, so we are adding new scopes according to the instructions given in your integration doc, and two of them require the verification process.

Can someone throw some light on this please?