Google does not have unlimited. I had to pay to increase my storage.

Google Drive reneged on unlimited storage for Education accounts once they realized that universities also contain researchers who need to store huge amounts of data.

Google forced everyone off their deprecated G Suite for Business plan (which had unlimited storage) and onto a Workspace plan.

I had to give up and delete plenty of data because of this. That data was important to me, but not important enough to pay their ransom.