So have you heard of Gutenberg, the WordPress replacement for the conventional HTML editor?
If not then you will soon have because when WordPress version 5.0 is released Gutenberg will replace the current editor.
Gutenberg is more than an aesthetic design update.
The current focus may with content creation, but the eventual goal is for Gutenberg to offer full site customization and to compete with the big page builders out there.
Eventually, you will be able to build your whole site using Gutenberg.