If she wants to come here as a student, she should apply before marrying. There is nothing wrong with marrying after visa approval and she doesn't need to update IRCC. The fact that she is married to a Canadian PR may be a factor at the border when she enters as a student or it may not.
I’m in the same boat mate.
can you please share which path you ended up taking.
my fiance and I are palnning to apply for study permit for fall.
I’m a pr and planning to sponsor Inland once she is here.
if you can share your journey that would be really helpful.
thanks in advanve.