Meta’s news ban is preventing Canadians from sharing vital information about the wildfires ripping through western Canada::Canadians are calling on Meta to lift its news ban so they can share news about the wildfires in the Northwest Territories and British Columbia.
There’s no set size but there needs to be an imbalance of power:
https://www.parl.ca/DocumentViewer/en/44-1/bill/C-18/royal-assent
Application 6 This Act applies in respect of a digital news intermediary if, having regard to the following factors, there is a significant bargaining power imbalance between its operator and news businesses:
(a) the size of the intermediary or the operator;
(b) whether the market for the intermediary gives the operator a strategic advantage over news businesses; and
(c) whether the intermediary occupies a prominent market position.