I've noticed a drastic drop in free storage on my iMac (Retina 4K 2015). After looking into it a bit more, I noticed that "Other Users" is taking up 350GB of storage. This computer is only used by my wife and I. We have a guest user account, but no one really uses it unless in-laws are visiting.
What is "other users" and does it seem normal that it would take up 350GB?