I thought fluoride in water was supposed to be a good thing

I don’t watch the news, but I just read an article from NBC Miami and among other of the new bills/legislation approved, this one peaked my curiosity about because I thought the fluoride in water was very beneficial for our teeth.

Here’s the link to the article : https://www.nbcmiami.com/news/local/these-14-new-laws-are-taking-effect-in-florida-on-july-1/3647062/?amp=1

Miami already voted to remove it, is the difference or affects noticeable to any local water drinkers. I run tapwater through a Britta filter so I don’t know how much it affects my experience. Any insight would be appreciated