I have recently worked on a project where I wanted to export an animation as fbx to Unity. Part of the animation were animated Arrays and as I tried to export them I faced two problems:
1.- Animated arrays can’t be exported as an animation in fbx format (only as alembic, but alembic doesn’t support textures).
2.- As I applyed the array modifier and animated the array elements separately, I wanted to use the Decimate modifier on all the selected objects. But that is sadly not possible at the moment, so I had to apply the modifyer one by one on all the objects.
My point is: it would be very nice if modifiers could be applyed on multiple selected objects at once, and turned into mesh even when animated.