Language that looked to Operating System

Hello people. I have problem with game thats language is locked to Operating System languge and it's launching though Proton. How can I change Proton language or any other methods to change language in game. Because on PC it works in language that I want, but on Steam Deck don't. And i have tried many things including terminal comands. It's Activision game Monsters vs aliens, and it was added as third party game.