Fort Myers Beach is just a short distance from us, as the crow flies, and sometimes hours by car depending on the level of heavy traffic you encounter. As far as I can tell, the traffic is never light and sometimes virtually impossible. I think the reason is quite simple. There is nothing but vacation rentals from one end of the island to the other with only one road to travel on. Add in a state park and Bonita Springs at the south end and its heavy load of rental places and snowbirds-you get instance gridlock on most sunny warm days.
Since we have not had many of those days yet during our stay, we did venture into the Fort Myers Beach area to look around. It is a resort area of long standing and has that 1970’s or earlier feeling about it. Not exactly what you would call up scale by current standards, but we found it amusing to walk around the small downtown area and check out the nearly deserted beach on a cool and windy day.
Unless you are staying there, I doubt downtown is worth a second trip.