I gave some very, very rough calcs before on where vaccination is in Canada - with implied projections - and what I should have done is linked instead to this econ/data expert instead:
The thread has a lot of detail for those interested. Short form: I was far too conservative about when the 'target' levels (eg about 75/75% first and second shots) - I did simplistic and said end-September. This prof's numbers say end-August (of total population - sooner for 75% of those 12 years and older, which should be by mid-August).
Otherwise the same overall points: Canada is shifting quickly to second doses, but even if that wasn't the strategy (as announced), it would still have to happen because ... pretty soon everyone who wants will already have the first shot.
For those who want to compare internationally, some rankings (on various measures) here:
I think it's fair to say that the only comparison on which Canada's doing less well is % of population fully vaccinated - which is a direct result of the deliberate strategy to focus on first-dose vaccinations instead.