The bill does provide some exceptions. According to the bill, the term does not apply to an online service, website or app where the exclusive function is e-mail or direct messaging that could consist of photographs or videos shared only between the sender and recipients.

Email lacks upvotes basically, and an algorithmic feed picking content, so children can still text, chat, email, etc. Although these days even SMS texts allow someone to "react" to messages, though no algorithmic feed and limited distribution list so probably not considered "addictive".

Anyway it's surely just security theater on the part of Florida, while at the same time social media is legit addictive - both are true at the same time.