2022 coal use is a third greater than 2020, as _dain_ mentions, but 2020 was anomalously low usage rather than representing a normal baseline for comparison.
While any increase in coal usage is a problem, the coal use should be compared to the average of the last few years with the anomaly of 2020 removed. This would produce effectively no increase or decrease in coal usage.
Source: https://ag-energiebilanzen.de/wp-content/uploads/2023/03/STR... via https://ag-energiebilanzen.de/