Inside seating for Florida restaurants are currently at 50% max. Restaurants are free to set a lower threshold. In fact a few restaurants in Jacksonville Beach have gone back to take out only, because some of the restaurants near by have had employees testing positive for covid.
For Disney restaurants, it will be hit or miss. Some restaurants have really tight sitting so the achieving 50% would be almost impossible, while others may be able to get close to that.
We just got back from a two night trip to Daytona Beach. Let's just say the idea of social distancing in restaurants and hotels were hit and miss.