I don't think that would be super-helpful. Even if you work in a corporation, you occasionally need to receive a shared file from a customer, outsourced team, etc., even if you don't plan on it. Then, debugging why you're not receiving shared files will be frustrating.
The problem here isn't people sharing things with you, the problem is abusive spam. So anti-spam tech (like blocking which is the most basic) is the right approach here, I think.
Exactly - In my experience anyone could share their google docs to everyone under the sun, with or without notification. You don't get asked permissions to agree to have a shared file in any case.
So as long as you don't filter out the share file requests from other people, there's no need to keep the notes about "some stranger has shared this file with you". Coz you wouldn't care.
Though it's probably good practice in comms to inform someone by chat/separate email that "here's a new shared file you should be looking at."
It should have the ability to only accept document shares from people in your google contacts / in your organization.