Apps · Offloading and restoring apps
Does offloading include my app's settings and data?
Short answer: Yes. Offload archives the app together with its data, and Restore brings both back. Documents you saved elsewhere aren't touched.
Yes. Offload archives the app and its data — such as its support files, preferences and caches — and Restore puts them back together, so the app opens as you left it.
A few items that macOS itself protects may have to stay in place on your Mac; if so, Storage Studio tells you when the offload finishes. Documents you saved elsewhere, such as in Documents or iCloud Drive, aren't touched.