"Oh! Well, I actually did not know this. You are saying they realized they shouldn't use my Gmail to customize what ads they show me; how can I verify you are right to say so?"

and then my response:

"Googler here, who worked on Workspace (which gmail is a part of). Anyone who works in workspace could confirm that, it's something that is taken very seriously."

I'm not sure how I could have been more clear...