Nothing is free, especially when Google is providing the service. You are the product.
How are you the product with Google Meet? I can speculate, based on how it monetizes information in its other products. Google is processing all of the conversations through its deep learning systems, harvesting insights about everything discussed.
This heightens privacy concerns 100x from whatever Zoom was attempting.
Where are the activist blog posts about this? They don't exist because Google surveillance has been normalized. It's ok if Google does it.