Let's Talk About The Endlessly Mysterious "IX-Applications" Snapshots

[bacon]

I’d say it is safe to remove if everything migrated successfully.
Quote from https://forums.truenas.com/t/deleting-apps-from-ui-is-not-deleting-app-data-from-ix-apps-dataset/12819:

@DjP-iX

Data from previous app installs retained in the legacy ix-applications can be used to migrate or recreate applications in 24.10, but I’d say that once you have everything back up and running you should be able to safely delete the unused ix-applications dataset.