What did the court decide in Burlington Northern & Santa Fe Railway Co. v. White?
Answered for: US
the antiretaliation provision does not confine the actions and harms it forbids to those that are related to employment or occur at the workplace
The Court held that Title VII's antiretaliation provision reaches employer actions that would dissuade a reasonable worker from complaining, whether or not workplace-related.
This answer is true in US and nowhere else on this site. Another jurisdiction is another answer, or an honest gap: see what has been read for US.