Hope you all are doing well.

I have a Samsung A51 that came with the MID firmware. When android 11 came out for Russia, I have decided to flash it and I did. Few days later, I have flashed the UAE firmware. Now, If I wanted to flash the MID firmware back (once android 11 is out for it) and since the XSG and the MID are part of the same multi-csc, which is OJM, will my CSC change back to MID or does it stay as XSG until I flash another multi-csc and come back again for the MID?

Here is a screenshot of my A51:
Click image for larger version. 

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Just more thing, what does the XSG/XSG,XSG/MID actually mean?

Btw, my device is not rooted and I have erased everything every time I have flashed.

Thanks in Advance!