Changing an existing embedded media's alignment or alt data attributes does not get saved with CKEditor5
Unable to change embedded media attributes.
Issues
Change Standard profile to use Media instead of image fields
Switch to Media as default image solution.
_filter_autop() breaks links around the <drupal-media> tag
Issues with embedded media linking.
Moving "Convert line breaks into HTML (i.e. br and p)" to end fixes some problems.
Add ability to insert Media inline in CKEditor widget
Insert media as inline element.
Allow CKEditor styles for <drupal-media>
Render media with styles selected in ckeditor.
See this blog post for instructions on how to add styles via *.ckeditor5.yml.
Some oEmbed videos do not maintain aspect ratio
Need css to maintain aspect ratio.
oEmbed videos are not fully responsive
Handling responsive embed styles.
Support for Codepen
Codepen formatter.
Support Google shared resources, not only public ones
Can't use it for most google docs.
Provide option to display contextual links on embedded entities
Contextual links for embedded entities.