I just stumbled into some place called Open 3D Lab.
https://open3dlab.com
It's got almost 4,000 Blender conversions of game items and scenes. Surprisingly there's also some Daz scenes (architecture and sets)converted into Blender. I opened one large interior scene in Blender and it was gorgeous. It was also optimized to run well even on my modest computer.
Downloads are on reasonably fast free servers and I downloaded a bunch concurrently.