After so many attempt to fix the bed level i decided to create a small spacer to add between the mount and bed's support. The spacer is 0.20 mm but you will be able to change it in your slicer just working on the Z scale.
I use to had almost 1.2 mm of difference on the mesh, also with the bed level fix suggested by Creality.
This solution is quite easy.
Let me know if it works well in your case too.
Thanks
Print setting:
use 0.10 mm layer
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