Currently, "Notify affected users: x days before expiration" setting change does not get reflected on the security logs report.

<Repro steps:>

1. Go to Admin Console > Enterprise Settings > [Content & Sharing] tab.
2. Make sure "Automatically remove invited collaborators" is ON.
3. Turn on or off "Notify affected users: x days before expiration" checkbox and save the setting, with "Automatically remove invited collaborators" kept ON.
4. Run the security logs report.

Currently the change does not get logged on the security logs report.
Please reflect this "Notify affected users" setting change on the security logs report.