In Magento 1 t merchants commonly used Magento for an online store and some other CMS, e.g. WordPress, Joomla or Drupal for blogging, then installing different tools to make the integration between these systems.
For Magento 2 there is the Blog extension that allows you to have a store and a blog in one place. Here are the advantages of using Magento 2 Blog Module over other blogging platforms or integration modules:
Magento is one of the safest frameworks. Safety is the top priority for any successful business. And it's known that WordPress and other blogging CMS are not famous for their security, especially when being installed with additional modules. That's why using Magento extension which expands Magento itself is better. M2 Blog extension has passed over all verifications on Magento Marketplace, including security and it is safe to use.
2. Easier To Maintain
Using Magento Blog module you maintain just one platform - Magento, not Magento and WordPress, Magento and Drupal or Magento and Joomla. In case you need to add some new features like integrate some tracking pixels or even update the system you do it just with Magento and its extensions.
3. 100% Integration
When you use Magento 2 Blog extension you have 100% blog and store integration, which can't be achieved with the integration module. On the blog pages, you can have access to customers, products and any other store data as well as on catalog pages you can reach blog data (e.g. related articles).
4. One Design
Magento 2 Blog module allows you to use the same templates and styles for the header, footer, sidebar that makes a blog look similar to your store pages automatically.
5. Same Features and Import Wizard
With the help of Blog for Magento 2, you can have the same functionality as on the blogging CMS and the Blog Import Wizard will help you to import the blog data from WordPress, Joomla, Drupal, and other CMS in a few clicks.
6. Easy to Customize
The blog extension layout is easy to modify according to your needs. Here are some Blog examples of 10000+ shops using Magento 2 Blog by Magefan:
https://www.rosnutrition.com/ie/insigh https://www.heidiklein.com/heidis-journal https://www.decathlonpro.fr/dossier-sport https://www.swarovski-lighting.com/projects https://www.navionics.com/fin/blog