Product Suggestions
In the new report layout, Shared Reports is showing all reports, including ones that are mine but I haven't made public. This should be changed so that Shared reports only shows public reports.
In the latest release (v81, being rolled out over the next few weeks) the reports that are private now have an icon making this clear.
There's also no "Shared Reports" library. This has been replaced with a "Other reports" group and an "All Reports" group which let's you search all reports (without knowing which group they were originally saved into)