Doesn't change the end result. Hell, you can add every person who died in the atomic bombings to the nuclear tally (even though that makes no sense at all), and it still won't change the result.
No, you don’t get 2.5 million deaths per year from fossil fuel usage. Though a few seriously flawed studies have gotten some very extreme numbers.
For example respiratory diseases represent ~5% of all Chinese deaths or about 500,000 in 2020. Which is a horrific sign of air pollution except China also has 350 million smokers. Looking at the non smoker population you see air pollution as a major factor, but again not all air pollution is from fossil fuels.
Air pollution is also associated to strokes and heart attacks, but again other factors are involved.
For example respiratory diseases represent ~5% of all Chinese deaths or about 500,000 in 2020. Which is a horrific sign of air pollution except China also has 350 million smokers. Looking at the non smoker population you see air pollution as a major factor, but again not all air pollution is from fossil fuels.
Air pollution is also associated to strokes and heart attacks, but again other factors are involved.