ATC wrong wind call

Was at CYTZ and ATC report the wind at this; 211/29.
But the windsock was totally down!! Is the windsock works
in FS2020?

Yes, the windsock works - the issue is that live weather winds are not being injected correctly in certain countries (Canada and US included), as such the winds are 225/03 everywhere and at all altitudes. The windsock reflects the actual wind conditions in-sim (so, essentially calm) which is why it was limp.

If you were to select a preset weather theme, you would see the windsock works as expected.