Canada

Being bilingual is a metric for hiring, so some people who can say "Jim apple George" or "monet es George" will call themselves bilingual. So knowing enough to be hired, and knowing enough to actually do the job are two different things.

For rank and file this is true, but there is a certification process for supervisors.

But I can see the other points being relevant, especially about technical jargon with colleagues. I guess I'm lucky that almost everyone I work with knows enough of both languages to flip back and forth as needed. The french training in my dept is excellent.