Levistus's_Leviathan
5e Freelancer
D&D 5e is my first edition, and the longer that I play D&D, the less and less I like 5e's Great Wheel Cosmology. However, I can't help but appreciate the idea of having the Inner Planes be material in nature (Elemental Planes, reflections of the Material Plane) and the Outer Planes being spiritual. Making the Shadowfell and Feywild be Inner Planes like the Elemental Planes was a good idea, IMO.I'll defend 5E cosmology for just a moment... IMO, this edition does a pretty good job of taking the best/most iconic elements of previous editions cosmology, and trying to organize these into something cohesive.
So it takes the Great Wheel from the older editions, takes things like the Feywild/Shadowfel from 4E, and adds things like Spelljammer/Planescape elements into something where everything works and can slip into each other where necessary.
I'm sure some folks don't like this, so I'm willing to defend it if challenged (respectfully).
I don't love the Great Wheel (I actually kind of hate it), but I like the concept of the Inner Planes vs Outer Planes. And how they worked this into the lore of Dragons in Fizban's.