MacOS and System Data Taking Over 100GB o…
FWIW, “System Data” is not just space used with macOS system applications but it is also contains user data that does not neatly fit into one of the other categories. Often a lot of this but not all can be found in the hidden user’s Library folder (accessed by holding down the Option key and selecting the “Go” menu in Finder.
If you open this folder look at the size of the “Application Support” folder. Depending on your apps, they could be storing a lot of data in these folders. Before messing with anything in these folders, you need to go to the application developer site and see what can be done with them. Some apps can allow certain portions of that data to be located on an external drive.
As for the amount you are seeing, 50-60 GB is not unusual for “System Data”.
