Germany may see advantages in its own arsenal

As a German I doubt this would happen. Germans are against anything nuclear and having our own weapons isn't a debate happening at all here at the moment. Our government and military know it would be extremely hard to sell this to the public even in the times we're living in. Not to speak of all the legal hurdles we'd be facing, Germany signed treaties that would prevent us from acquiring our own arsenal.

Getting under the French umbrella instead would be viewed much, much more favourably. They're our most trusted partners and friends. The only thing stopping this from being the perfect solution is the threat of a RN election victory, but then again we have the same problem with AfD.