Like it or not, Block Editor is a big part of the WordPress development focus, and in the coming years, it will be increasingly important to know how to develop blocks and replace shortcodes and widgets that are becoming obsolete and build new functionality too.
WordPress 5.0 was released in late 2018, and it brought a new editor. It is a Block Editor, but it is better known as Gutenberg. And, the new editor introduced the concept of blocks, and the block is set to replace both widgets and shortcodes with more user-friendly controls.
As I announced last week, I decided to start with the Gutenberg (Block Editor) blocks development, exploring the process from the very beginning and trying to do it all with the help of the official WordPress Blocks Documentation.
WordPress Block Editor is now a part of WordPress for over two years, and over this time, a significant work has gone into editor. And, it is obvious that block development is becoming increasingly important part of WordPress development.