That's true, but the US has other checks and balances. Trump, for instance, can't introduce a law or vote on it, not true for our PM. But it's nice to have the GG as a tool in our back pocket just in case.
Of course, it's just as easy for us to replace the Crown/GG with a president (elected or appointed), and have them serve virtually the exact same role.
I do know that many Quebecers and I assume many indigenous aren't fans of the Crown, which i can understand. It might be unifying to get rid of the Crown, but then the loyalists would be quite upset, so I could see major fights. In this political climate I would avoid dealing with this issue right now.
The checks and balances the US has have shown themselves to be weak.
Oh I wouldn't deal with it right now ... not at all.