It's 100% from the federal government.
As you know, since the beginning of the pandemic, the federal government has invested $8 out of every $10 invested to fight COVID-19. Many of these investments have been transferred to the provinces and territories, for example vaccines, rapid test kits, and PPE. Schools also received funding through the provinces.
In this case, MP Kusmierczyk, the $4 billion is all from the federal government.