Consider that climate change doesn’t care for percentages, but total CO2equivalents.
Coal is still the third-fastest GROWING energy source in TWh (from the article), so the question is really 90% of what?
It’s likely somewhere between 2023 and 2026 will be the all time peak but it’s only really dependent on the economy in the short term. Long term coal is clearly dying and looking at China’s energy policies it’s going to start dying quickly.
Which means, even if you ignore the nuclear, hydro, wind and solar that they are building at world leading speeds, the electricity from coal is being used to much more efficiently achieve actual services that in Texas or wherever has slightly less coal in their electricity mix, is being done inefficiently with gas or oil.