It's important to distinguish suicidal ideation and suicidal attempts from completed suicide. There's no question that young girls experience suicidal ideation or make a suicidal attempt that's non-fatal two to three times more commonly than boys, and young boys do complete suicide more commonly than young girls.
What's quite disturbing is that the gender gap on completed suicide—boys completing more commonly—is narrowing over time, not only in Canada but internationally as well. The gender gap where boys are more commonly affected—like antisocial behaviour, substance use and completed suicide—is narrowing over time, suggesting that the mental health of girls is being differentially impacted by things that are happening not only in Canada but globally.
I don't think it's a matter of reporting, because boys do report depression and anxiety, but certainly nowhere near as commonly as girls do. I hope that answers your question.