Export the file the next tool opens.
Pick the format the next tool already opens. GLB is the web and real-time file. FBX is the engine and rig file. OBJ is the plain interchange. STL and 3MF go to a slicer. USDZ opens in Apple AR. Pro exports all six. A rigged FBX is the Studio step.
GLB
Web, real-time
When to export GLBFBX
Engines, rigs
When to export FBXOBJ
Universal
When to export OBJSTL
Printing
When to export STLUSDZ
Apple AR
When to export USDZ3MF
Printing, color
When to export 3MF