The Left Lane Is For Passing, Per Florida Law

In the state of Florida, if the road you’re driving on has 2 or more lanes heading in the same direction, you can only use the far left lane for passing. After passing the slower vehicles, you are required to move back into one of the other lanes.

Read more:
https://big1059.iheart.com/featured/florida-news/content/2020-12-17-the-left-lane-is-for-passing-per-florida-law/