In the long run I fear it does not matter.

The fossil fuel "won" by prioritizing profits over the environment. IMO, the world is heading straight to +3C and no way to stop it.

We could probably prevent 3.5C, but by then the world will probably be in a massive "war" footing due the 1 billion+ people migration north. Assuming civilization did not collapse.

We are about to not be the main drivers of change. I won’t be so optimistic about it stopping at 3, 3.5 °C or whatever near enough. What may change is how fast we will get there, but we already are reaching the limit set for the end of the century 10 years ago.