Webflow does not support plugins. As such, you will have to use the rich text field editor to create/maintain content. This component does have an integration to embedly, which makes it easy to paste in URL’s from over 600 services that will create a related object within your content. This is similar to Gutenberg’s features. However the migration of content is challenging as Webflow does not support custom code within your posts, does not support shortcodes, and does not support responsive images in rich text fields in the CMS. So before you jump you might want to do a trial build to see what your issues may be. I much prefer Wordpress’s gutenburg editor and it’s capabilities over Webflow’s RTF. Want to add a gallery in a posts content? Not possible. That is just one example. I love Webflow for what it is good at. I don’t think blogging is one of those. Good luck with your project. If you need conversion services let me know.