Fossil Fuel Subsidies Canada - $5.4 billion per year.

[AlbertaFarmer5]

In the methodology links from your study ;

" Implicit subsidies occur when the retail price fails to include external costs, inclusive of the standard consumption tax. External costs include contributions to climate change through greenhouse gas emissions, local health damages (primarily pre-mature deaths) through the release of harmful local pollutants like fine particulates, and traffic congestion and accident externalities associated with the use of road fuels. Getting energy prices right involves reflecting these adverse effects on society in prices and applying general consumption taxes when fuels are consumed by household."

These are not the direct subsidies like when you get a cheque from the government for purchasing solar panels or starting a battery plant.

It's an attempt at allocating all social cost of using fossil fuels.

It would be like if Freeland added 75 cents a ltr to the price of gas to cover what they call downstream costs.

Woke Bullshit

Correct.

I assume this is the same methodology as a study Chuck posted a couple of years ago.
Upon further inspection, it included such externalities as filling potholes as a subsidy to oil companies.

Because we all know that if we drove electric cars, there would be no potholes, accidents, congestion etc.