The RS3 Mini (Universal, 2 kg) is compatible with the Fujifilm X-M5, provided the camera body and lens combined weigh less than 2 kg and feature a 1/4" screw mount. However, full functionality for features like zoom and focus control may not be available.
Yes, that is possible. I even have three extended handles on mine. I found the two handles for left-right holding on AliExpress, which you attach to the bottom of the thread.
The DJI RS3 Mini Gimbal is designed to stabilise cameras weighing up to 2 kg. The Blackmagic Pocket Cinema Camera 4K and 6K models weigh approximately 0.7 kg and 0.79 kg respectively, which is within the carrying capacity of the DJI RS3 Mini.
Therefore, the DJI RS3 Mini can easily hold and stabilise the Blackmagic Pocket Cinema Camera.
Hello, no, there is no case included. Cases/cases are available from third-party manufacturers, for example. But it is so small that I carry it in my photo rucksack.