@ericfreyss You misunderstand the Canadian Online News Act. It would not provide a license to actually show any copryighted content. That would be a separate cost to to Google or Meta, outside of the scope of the act.
Say they show a news article: They would have to pay the link tax AND obtain a copryight license.
Say they just link to the homepage of the Toronto Star (paywalled). They don't need a copyright license, but they still have to pay the link tax.