MySQL Workbench, Windows Server 2019, MySQL not showing Performance, Information of MySQL Schemas!
A similar issue, Information_Schema and mysql databases not shown, was submitted as a bug report to the MySQL Bug System nine years ago. The report was resolved as Not a Bug as the issue turned out to be something controlled by one of MySQL Workbench settings. Specifically, Valeriy Kravchuk suggested this resolution:


  Please, check "Show Metadata Schemata" checkbox in the Query Editor group of the SQL Editor tab in the Workbench Preferences dialog box. Use Edit > Preferences... menu item to open it. Don't forget to click "Refresh all" in the Object Browser's context menu after that.