I have noticed that the translation of the word “tab” (at least on Android) has been changed recently in some places.
I find it incorrect and misleading. “New private tab” is now translated as “Nowa zakładka prywanta” but “zakładka” should be used for bookmarks, not tabs. The correct translation should be:
New private tab - Nowa karta prywatna
Close all private tabs - Zamknij wszystkie karty prywatne
The only other thing you can do is create a pull request that resolves the issue. I don’t know why no one is paying attention to the issue, it might be worth tagging a couple of team members so your issue is recognized. Try tagging kjozwiak, rebron, and bsclifton on Github, hopefully that will make them recognize the issue.