Summary
It can be done. Baking with cache type Replay works. Others do not.
Test Environment
Default .blend, light, camera, cube. Added a new cube. Set default light to Sun.
Procedure
I used the default cube as the sim domain and the new cube as the flow item or emitter.
Attempted to move baked sims using various combinations of cache type, format volumes, and is resumable.
Tested if bakes with Replay cache type is saved on disk for future use.
Results
Bakes with Replay cache type can be moved. The cache is saved on disk. Other cache types did not allow movement.
Cautions and Notes
Scaling and rotating work too! Good for rocket/jet fire?
When the Replay cached flow object and domain are moved the fire continues to appear at the original location until the move is finished. Then it snaps to the new location.
Hopefully, the import vdb as volume method will allow me to use the current cache for this project.
(A button like the Bold and Italic ones for underline would be nice. [ u ] [ / u ] works.)