Yes, set the FOV to 73.74 in the config file.
Everything is basically the same as in BF4 and BF1. If you set the USA value to match your AR you'll get 100% MDH. But in 21:9 this might feel very fast, you might be better off using a lower value like the default 133.
I've updated the FOV Type for in-game now, as they have changed it to Vdeg again.