To change the browser locale in Selenium automated tests, one method is to set up arguments to Chrome startup configurations before launching the web driver.
Another method involves using the CDP (Chrome DevTools Protocol) commands along with Selenide methods to programmatically override the browser's locale.
However, there seems to be an issue with ChromeDriver 114 and previous versions where overriding the browser's locale does not work.
This issue has been raised in the Chromium community, but no solution or results have been provided yet.