iCloud & iCloud Photos · Storage Studio and iCloud
Do online-only iCloud files count in Storage Studio's space figures?
Short answer: No. Storage Studio measures the space files actually use on disk, so online-only iCloud files never appear as space hogs. Downloaded iCloud files do count — and those are the ones Free up and Run Tuhi can free.
No. Storage Studio measures files by the space they actually take on your disk, and an online-only file takes almost none. So online-only iCloud files never show up as space hogs in Storage Profile's Biggest space-users, and they don't inflate your used-space figures.
Files that are downloaded do count, because they're really using your SSD — that's where Free up and Run Tuhi can help.
The cloud share shown under Where it lives comes from your accounts' real usage, so you can still see how much lives in the cloud overall. See how much space iCloud is using.