Signed into law in 2002, with the last reactor going offline in 2023. Depending on how you count we got rid of it a quarter-century ago.
Not the best decision, and a major reason why Germany uses so much coal and gas today. But outside some special circumstances nuclear isn't cost competitive with other renewables anymore, so for future plans it doesn't really matter
Germany uses less coal and gas today then in the past and it has been a straight decline both before and after the nuclear phase out [0]. They are currently committed to phasing it out by 2038. We can argue that it may have gotten faster if nuclear was still there but that’s a counter factual that would have to be proved.
~58.5% of Germany electricity came from renewables in 2025, the last of the fossil generation will be pushed out with more renewables and batteries. They deploy ~2GW/month of solar PV.
As other comments mentioned, in a more perfect world, they would've run those nuclear generators longer to avoid emissions. Alas, we live in an imperfect world. Keeping grinding towards net zero.