I just noticed in Disk Utility I have a bunch of iOS disk simulator images - about 50GB of space in total. What are they, and are they needed for something?
Hmm. I haven't done any development on the Apple platform, maybe I explored Xcode a little at one point - I can't remember. Did I inadvertently install these with something? Unless I missed it I don't see any Xcode platform/apps on my Mac...
Thank you for the tips @gilby101 ! I did have residue there. I was able to just eject/remove those images in disk utility, and they stayed away after a reboot yay.