I have family in Jacksonville and I asked about the ebike laws and regulations. I was given this link.
Their ebike classes are the same 3 as all other states, see #23
As other states all 3 classes of ebikes have the same rights and responsibilities as bicycle riders, where they can be used is up to local governments and authorities.
"However, this section may not be construed to prevent a local government, through the exercise of its powers under s. 316.008, from adopting an ordinance governing the operation of electric bicycles on streets, highways, sidewalks, and sidewalk areas under the local government’s jurisdiction; to prevent a municipality, county, or agency of the state having jurisdiction over a bicycle path, multiuse path, or trail network from restricting or prohibiting the operation of an electric bicycle on a bicycle path, multiuse path, or trail network; or to prevent a municipality, county, or agency of the state having jurisdiction over a beach as defined in s. 161.54(3) or a dune as defined in s. 161.54(4) from restricting or prohibiting the operation of an electric bicycle on such beach or dune."
Link to the above text on the state's website. The above is all dated this year, 2022
Unfortunately like so many places around the country, 'experts' misrepresent the state's laws on official looking websites like this one.
Chris Burns gives an overview on e-bikes, or electronic-assist bicycles, and how they relate to bicycle laws in the State of Florida.
floridacyclinglaw.com
There are local jurisdictions that ban ebikes in Florida in places where bicycles are allowed, this is one such place. (Dated 1/10/2022)
Some Pinellas County beach communities are cracking down on electric bikes and scooters. St. Pete Beach is the latest city to ban motorized bikes, scooters and skateboards on the beach and on sidewalks along Gulf Boulevard.
www.abcactionnews.com
As to whether some paths and trails are limited by class, I haven't looked into it.