This is a problem specific to Steam Deck Controller. I configure various controls related to tank and aircraft but as soon as I log out of the game it changes keys and binds them to the D pad. For example If I bind X key for thermal sight after exiting and then entering the game it will automatically switch to X + D pad Up etc. This is a big headache and makes the game unplayable even though the game is steam deck verified and it shows it is fully compatible.
I guess it is a bug that can be resolved by the game developers. I bought the steam deck for this particular game only and it sucks that I cannot play. There are many others like me on YouTube who have this same problem.
PS: Also saving controls to the disk does not help.
I would like to know from Game devs if they are aware of this problem and whether or not they are working on it?