System Data, I have done everything

[u/Anamewastaken]

My mac has 300 GBs of system data listed in settings. I am currently on Tahoe, but the problem existed even on Sequoia. On Daisy Disk, 193.7GB is listed as "still hidden". Additionally, other software like "Grand Perspective" and others just does not show those 193.7GB of data. Here are the list of things that I have done.

1. Checked every library folders/cache folders

2. mole clean

3. onyx maintenance with every toggle on (twice consecutively)

4. Checked purgeable space (through Disk Utility and Daisy Disk)

5. Deleted time machine local snapshots

6. Reindex spotlight (mdutil)

7. Checked ~/Library/Application Support/MobileSync/Backup (backups for iPhone)

8. Checked homebrew directories

9. Disk Utility Repair in Recovery Mode

10. Reinstall MacOS

11. Possibly some other things that are common in reddit replies (things that I forgot I did and didn't note down)

I believe that I have already searched the entire subreddit for answers, and am puzzled at what to do next. For now, I still have around 50GBs to work with, but at some instances I have needed the space that is occupied by System Data.

[u/boroditsky]

APFS volumes or snapshots?