Coal is down from 45% in 2013 to 23% in 2020. https://en.wikipedia.org/wiki/Energy_in_Germany
During the same time, nuclear is down from 17% to 13%. https://energy-charts.info/charts/energy_pie/chart.htm?l=en&...
Still too little too late in my opinion, but one has a hard time arguing that nuclear plays a role here at all.