Unable to set UI language to Finnish on Zorin OS

Description of the issue:
Unable to set UI language to Finnish on Zorin OS. I have system language as English.

How can this issue be reproduced?
When your system language is English, and you install and use Brave, it will be automatically in English. And there is no option to change the user interface language.

Expected result:
Brave browser has UI in Finnish language.
For example, instead of New tab, it should say Uusi välilehti.

Brave Version:
Version 1.73.105 Chromium: 131.0.6778.265 (Official Build) (64-bit)