iOS simulator downloads loads of data even over personal hotspots that should be low data - 10s of GBs which exhausts cellular plans. I.e. I'm connecting the phone over USB (charging and it automatically shares the cellular connection and faster deploy and debugging).
I see that /Library/Developer/CoreSimulator/Volumes/iOS_23F77/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 26.5.simruntime/Contents/Resources/RuntimeRoot/usr/libexec/nsurlsessiond downloads 10s of GBs probably in /Library/Developer/Xcode/UserData/Previews/Simulator Devices/<UUID>/data/private/var/MobileAsset/AssetsV2 over time.
Most plans are not that infinite.
Has anyone seen such thing? The phone is connected over USB and automatically used as network device and also has the low data mode toggle on.