I have the following challenges:
@Lizzy when blog posts are assigned to different “Blogs” at least in the Theme Debut when I want to insert a Blogposts Section on the Start/Frontpage I can only select one of the Blogs, which seems unlogical because usually you want all the newest blog posts to show up there. So either I use only one Blog for all posts or I need another Section functionality/element - maybe I will try an App like PageFly Advanced Page Builder in the hope it is supported. I’m new to Shopify so changing Theme now or buying Apps is not planned in the near future 
@chefkatherine I’m also coming from WP so every SEO blog feature there is missed and particularly I also miss assigning blog posts to multiple “Blogs”. As of now I do not understand why a shop does need multiple blogs and why a category system like in WP would not work better. With more experience I hope to figure out the best way to combine this shop-focused system with good integrated SEO friendly posting.