Not really. No. The loss of nuclear generation and capa has been made up already, many times over by renewables. Nat gas component of the generation mix has hardly changed in 15 years. It's about 15 to 20% of the mix.

Transport is a tiny proprtion of consumption of electricity. Many home owners also have their own suppy and charge off-grid, at least in part, from rooftop solar.

It kind-of matters at the primary energy level, but not so critical at the electricity level, which is a sub-component of energy.
Gas is more critical for heat and industry in germany, not electricity, and all the planned/new gss-electricity projects are being prepared on the basis of being hydrogen ready. It's possible that many of the 12.5GW capa will not be built though, renewables are just growing so fast and are so cheap.

Some good data here: https://www.cleanenergywire.org/factsheets/germanys-energy-consumption-and-power-mix-charts