How to change the flag in the online ranking? (FlatOut: Ultimate Carnage)

Perhaps this is configured in GFWL or the game shows the flag based on the MS account.

I am in Ukraine, and the flag shows Russia. The difference seems to be palpable.
One user wrote:
Not configurable in GFWL. There is an inscription "country and region" and the flag is there, but you can’t change it
PS but everything on the shit site finally found de change ...

So I don’t understand what kind of site and where to change it.

The topic is still relevant.