On this page of our guide to Far Cry 6, you'll find information regarding a map editor. You will find out if it is available in the game.
An Arcade mode was added to Far Cry 5 and allowed you to do additional activities, create maps, and various new games. You could choose to play one of the six game modes or focus on creating your own maps, which would provide additional hours of fun.
Arcade and Far Cry 6
At this point, there is no news that Far Cry 6 is going to feature an Arcade mode or map editor. This game mode was not included in the new game of the series, and you can find it only in the fifth one.