Run that test for real! The GH5 image will be cropped, but the relative amount of blur between your subject and out of focus areas will be identical
>A crop-sensor camera also comes in handy for macro shots. Recall that depth of field (DOF) is the distance between the closest and furthest parts in an image that will appear in focus. At the same aperture and for the same field of view, an APS-C sensor will have a higher depth of field than with a full frame camera.
I read your comment as saying that the exact same 50mm f/2 lens will produce less blur on an MFT body than on a full-frame body. That'd be a narrower FOV (~100mm equivalent) but the same blur as full frame. Perhaps I misinterpreted?