How to Fix Missing Appearance WordPress Menu?

Since WordPress is releasing full site editing, the Appearance menu becomes reduntant and is hidden. This is relevant only for so called block based WordPress themes. If you use one, you don’t have access anymore to the traditional navigation menus.

The only way to see or edit the navigation menu in this case is to go to Appearance > Editor to open full site editor, click Plus icon to add a new block or select a navigation block added by your WordPress theme, and there choose or create a menu.

Hit Update button to aplly the changes to the web-page.