By gut feeling I’d agree on Chrétien, and there is some polling on this (which I think backs that up). This article compares favourability after first election for PMs going back quite a ways and Carney looks similar but slightly worse off than Trudeau or Harper.
https://angusreid.org/prime-minister-mark-carney-first-month...
Well then, I concede! To stick to my guns would require us to trade competing survey results from different pollsters. That's no fun, and unsatisfying, in any case.