When a site is hosted on free wrodpress.com, plugin menu will not appear. Also if you don’t have an account for the administrator level, you can’t see the plugin menu.

In WordPress, you may not be able to see the plugin menu under certain circumstances. Some potential reasons include:

Insufficient User Permissions: If you’re logged in as a user with limited permissions (such as a subscriber or contributor), you may not have access to the plugin menu. Only users with the “Administrator” role or similar roles with appropriate capabilities can access this menu.
Missing or Disabled Plugin: If a plugin that provides functionality for the plugin menu is missing or deactivated, the plugin menu won’t be visible. Ensure that all necessary plugins are active and functioning correctly.
Theme Restrictions: Some WordPress themes may restrict access to certain menus or features, including the plugin menu. Review the theme settings or consult the theme documentation to see if this is the case.
WordPress Multisite Configuration: In a WordPress Multisite network, access to the plugin menu can be controlled at the network level. Network administrators can restrict plugin access for individual sites within the network.
Security Plugins or Settings: Certain security plugins or configurations might interfere with the visibility of the plugin menu. Check your security plugin settings or server configurations to ensure they are not causing any conflicts.

To troubleshoot and resolve this issue, consider the above factors and adjust user permissions, activate necessary plugins, review theme settings, check Multisite configurations, and ensure compatibility with security measures.