The bug

After changing the language the game window title (e.g. "Minecraft 1.16 - Singleplayer") is not directly updated, but only once a button is pressed or the options menu is closed.

Directly after changing language:

After pressing button / closing option menu:

Reproduction steps

1. Change the language
   Look at the game window title, it still uses the translation of the previous language
2. Press any button
   Now the game window title is updated