4.4.0 (Recomended) and above.

Yes, works as same as a object or asset.

An example video: https://youtu.be/EmJ5V5tKWNE

Yes, it's possible, you have to do:

1. Activate Render Instances Option in BCloner or Last Effector.
2. Select the Object, and export the static mesh in any format that you like, for example, obj.
3. Import .obj in Blender or your desired software.

Yes, it's possible as well with animations too, you have to do this:

1. Active the Render Instances option.
2. Export animation as alembic .abc with face sets option activated for material support.
3. Import .abc on Blender.
4. Bake animation (object>animation>bake action>visual keying to object).
5. Export as .fbx

It's possible, you should only activate Render Instances before using any MTKA Deformers, or you can add a Geometry Nodes node where you apply Instances. This step is important to convert all instances into real geometry and so MTKA Deformers can work.

A small sample video: https://youtu.be/H0uCcc0apmk

Yes, it is also possible to combine the different cloners,

An example video: https://youtu.be/WisEk9wl6eQ

Yes! Addon and Asset Browser File Ready.