hey man, i don't know why that happened there but earlier I strongly suspected this player kazim cheating, as there was a player(with a new ID) watching the game and this player exactly knows all my position perfectly. So if not a bug, I think maybe it's his doing.
Bug: Things Aren't Foggy

The game was against me, and I also did see the whole board although it was a fog of war game. I assume that there is a bug when starting a game against a specific user name.
maybe we should mention that we both, Azeezah and me were spectators in another game were we disabled the fog to watch this game prior our new game. maybe this setting was not properly cleared.
hey man, i don't know why that happened there but earlier I strongly suspected this player kazim cheating, as there was a player(with a new ID) watching the game and this player exactly knows all my position perfectly. So if not a bug, I think maybe it's his doing.
It's difficult to tell whether he knows the whole position just from the games. There is one move that is hard to explain in the last one (game 6, move 19). But then there are a lot of easy blunders without time pressure (game 4, move 53). And he does this sweeping motion with the rook that everyone does when they're looking for the king.
Maybe your games tend to be spectated since you're both highly rated? The watch list seems to ordered by rating/average rating. I'd be suspicious if it's always the same spectator, or they're always new accounts. That first spectator with the new id hasn't been online since that day.

There is one move that is hard to explain in the last one (game 6, move 19).
That one is not hard to explain at all. Aim was to capture the h5 pawn. and it was visible that f7 and h7 were not targeting g6. the king on f7 was definitly a surprise.

But nevertheless, I do not have to defend myself. There were always people thinking that I cheat, also in normal games (without fog).
If you think that a member is cheating, just report him/her.

I have had games start where both players see the whole board and no spectators (my rating isn't high enough). I just let it abort before the first move. Cheating is probably rare and known players are here for the right reasons, I would suppose. A spectator cheating would probably use anonymous mode if they knew about it. If you can't access your archive, or that of another player ("search failed"), just retype the last letter of the i.d. once or twice, reselect the user name and it will eventually work.

I've seen people create custom games where there is no fog...But still counts as a FOW ranked match...pretty dumb

hey man, i don't know why that happened there but earlier I strongly suspected this player kazim cheating, as there was a player(with a new ID) watching the game and this player exactly knows all my position perfectly. So if not a bug, I think maybe it's his doing.
It's difficult to tell whether he knows the whole position just from the games. There is one move that is hard to explain in the last one (game 6, move 19). But then there are a lot of easy blunders without time pressure (game 4, move 53). And he does this sweeping motion with the rook that everyone does when they're looking for the king.
Maybe your games tend to be spectated since you're both highly rated? The watch list seems to ordered by rating/average rating. I'd be suspicious if it's always the same spectator, or they're always new accounts. That first spectator with the new id hasn't been online since that day.
I think you should report those players. It can help.
I just played a FOW game and the fog wasn't working for either side. https://www.chess.com/variants/custom/game/19481052/109/3
You can see that it's labeled as "Fog of War" at the top, but the link says "custom" variant instead of "fog of war" variant. When you play through the game afterward, there is no "enable fog" button.
To get this game, I spectated a 3|2 fog of war game, then challenged one of the players by clicking their name and clicking the challenge button. It was supposed to create a new 3|2 fog of war game. Instead it made a 3|2 standard game.