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“Welcome to the Block Editor!” Once you have dismissed this notice, why does it keep coming back? For years users have complained about this and the fact that their settings in the editor do not seem to save across sessions. They have taken to the official support forums and Reddit to find out how to block this message from appearing. WordPress developer Johan Jonk Stenström even created a plugin called Welcome to the block editor B gone, which removes the welcome message altogether.
In the past, WordPress has stored users’ editor preferences in the browser. In 2019, web developer Andrew Duthie described the problem in a ticket on GitHub:
In the block editor, this is used in a few stores to persist preferences (e.g. toolbar placement, “new user experience” tips, etc).