via make.wordpress.org => original post link
These “Core Editor Improvement…” posts (labeled with the #core-editor-improvement tag) are a series dedicated to highlighting various new features, improvements, and more from Core Editor related projects.
In the last few versions of Gutenberg set to be included in WordPress 6.0, a collection of changes were made to simplify the discovery, use, and optionality of container blocks. When combined with the new block locking UI, you can create layouts of your choosing and lock when you’re ready.
Improved discoverability