Hi Ammar please use ObjectHasChanged java action from Community commons or use export mapping and compare the strings
The CommunityCommons module has an objectHasChanged java action.
It will also return true when an object went through a "change object" activity in a microflow while nothing was actually changed. If you only want true on "real" changes, create your own java action looping over attributes using getChangedMembers and comparing current values with original values.