The fog was a format I shied from Before that,I accidentally joined a fog game by misclicking on the join button when all I wanted to do was to check a player background. I also did not realise that it was in the fog. That game was a disaster

The players were so unfriendly and openly hostile which led me to believe that this fog is troublesome.
So I avoided the fog for a long time until recently I joined a tourney that used the feudal war map fog format 1vs 1. This makes me believe that the fog of war actually makes sense for feudal and perhaps a selected number of maps.
For example, I like the FOW in feudal that has 1 territory as your starting point and all others are filled with neutrals between you and your opponents. This is the unknown factor that increases the element of surprise/uncertainty. If you play this surprise element well, even from weak positions, your chances of winning the game is higher compared to the sunny format.
An example of a weak position above is supposing you get a streak of bad rolls, everybody can see how weak you are and target you in the sunshine but not in the fog because nobody can be sure. However a caveat is I have played enough 1vs 1 fog sequential or otherwise, to know that you almost never win from weak positions, arising from starting second and disparity in rolls (lately I have lost a disproportionate high number of games due to an unexplained bad dice streak while my opponents keep on getting good ones, strangely enough)
Well , I am done experimenting with 1v1 fog or sunny but I still keep to the feudal map because it is a map that supports the fog well. The element of uncertainty increases with the number of players. So now I am experimenting with 4 player terminator because it seems like ideal number.
Winning is not guaranteed even from strong positions but winning from weak positions, even harder. If you are one of those players who seems to find yourself in weak positions (as I often am) as explained above then you want to play the fog to have a higher chance of winning. So when you are weak but you still win, it is truly satisfying.
I suggest you experiment with more maps to find the map that suits you in the fog.
Last piece of advise, I found out through the hard way that you got to be very careful who you play with. I think it is best to avoid players who have long playing histories together especially in the fog. Have fun
