WP is a full blown CMS. It’s very versatile and you can achieve a lot with just the core. Additionally the Gutenberg Editor is the definitive editor for building content-pages.
A few month ago I tried to find a CMS as feature-complete as WP. However, I wasn’t able to find any good alternatives. I also asked on another forum and summed up my favorite WP features:
- Extendable admin area
- Custom post types
- Single- and archive-pages/-routes
- Taxonomy aka categories and tags
- Dynamic meta data (especially with ACF)
- Solid page editor for content
- Action-/Filter-capabilities
- Shortcodes
- Open Source
- Very compatible upgrade philosophy
- Media Library including automatic image scaling
- User Login
- API Support with custom routes
However, you need to know, that WP is higher settled than frameworks like Laravel. Especially data-management gets tedious on bigger instances. Just have a look at the DB schema and you will see, what I mean. On our company we solved this issue by integrating Illuminate/Database btw.