The thing to remember here is that after the schism the Orthodox church did not have to reorganize itself, or how it’s authority functions. It just kept doing what it always did.
Not even one new canon was needed. nobody had to say “gee, what do we do now?”
They didn’t ask “who’s going to name our bishops for us?”
nor “who’s going to promote or transfer our bishops for us?”
nor “who’s going to regulate our liturgy for us?”
nor “who’s going to canonize our saints for us?”
nor “who’s going to settle our disputes for us?”
nor “who’s going to delineate our territories for us?”
nor “who’s going to call our councils for us?”
nor “who’s going to declare our dogmas for us?”
nor “who’s going to keep our calendar of saints and observances for us?”
nor “who’s going to regulate our institutes of religious life for us?”
They didn’t ask these things because the Pope never controlled these things within their own authority. The Orthodox Eastern Catholic churches always took care of themselves and didn’t change their modus operandi after the event.
But since that time a whole host of new canons was written in the west to describe the Papal prerogatives that were introduced later. One might think that if the papacy didn’t need these canons before the schism they wouldn’t need them after the schism either. But apparently the western church had to be educated about what the Popes are supposed to do, and perhaps the canons were composed for that purpose.
You have a great day too