Thank you for that, Felipe.
Part of my answer is in the article Utilização de inglês em ocasiões improváveis
I worked for a bank a couple of years ago. The selection process included a test of English. I aced
I resigned two years later, and both my team and HR knew I had nothing to do with the profile needed for the post.
I wonder if there was a candidate who was competing with me who was not that good in English, but good for what the bank needed.
And no, I did not have any contact with any foreigner nor needed to read any document in English nor answer any international phone call during the entire period I worked there.
But, it could have helped me in case I wanted to change to an international dept, for example.
Fluency should not be required, but English always help us open some doors.