I have an upcoming flight with a dom->int transfer in YYZ T1. Inbound and outbound segments are (currently) showing as the same FIN but flight is too far out for gates to be assigned. If the FIN stays the same by the time the flights operate (very questionable with AC these days), would the plane get moved from a dom gate to an int gate? Or are there gates that can serve both sides? If the latter, would passengers have to do the long walk between dom and int areas twice to get back to the same gate?

(Apologies if there is an existing thread - I searched and could not find one)