MGS Blog is a free blog, and it is from magesolution, this magento blog extension has the following shortcomings:
1. It can not generate sitemap, so it is not good for seo;
2. It can generate duplicate urls, so it is not good for seo, say:
Both urls will display the same contents, so I have to delete MGS blog and install 2 separate blogs.
Here I will share how to disable MGS blog.
php bin/magento module:status
php bin/magento module:disable MGS_Blog
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy
php bin/magento cache:flush