From the article you linked:

"the legislation — passed Wednesday by the Legislature — makes it a felony for hate groups to harass people for their religion or ethnicity. Florida had the fourth-highest number of antisemitic incidents last year, according to the Anti-Defamation League."

He signed away his constituents' right to harass Jews?

And wasn't this bill already approved by the legislature?

One can already imagine the headlines if he DIDN'T sign it. "Desantis vetoes bill protecting Jews from white supremacists".

Huh, that's not too different than the headlines one sees right now.