You haven’t actually shown what you tried so it’s hard to say where you’ve gone wrong, but you seem to be overcomplicating things in your head.
It returns a list, so all you have to do is loop over that list.
- debug:
msg: File {{ item.uri }} was last modified {{ item.lastModified }}
loop: "{{ backup_files_results.json.files }}"`
In the future, try to mark preformatted text in your posts with code blocks to keep them readable. Use triple backticks (```) to start and end a block; if it’s in a specific syntax you can also specify that as part of the opening delimiter. For instance, this is what I’ve typed above:
```yaml
- debug:
msg: File {{ item.uri }} was last modified {{ item.lastModified }}
loop: "{{ backup_files_results.json.files }}"`
```