When the Body field on the default "Basic page" content type is disabled, the Media field buttons in a Paragraph are not styled correctly. The issue occurs in the default Claro admin theme as well as the Seven contrib theme. I suspect this issue would apply to other long text fields and in other content types.
I had found a similar report of this issue over in a Core bug report, https://www.drupal.org/project/drupal/issues/3372594 🐛 Incorrect theming of media library select button in Claro theme when using Paragraphs module Active , but the issue was reported as being specific to Claro which it is not. And since I'm not sure if this is a Core or Paragraphs module issue, I thought I would post here first since I only observe the issue when using the Media field in a Paragraph.
I'm testing in a local DDEV environment with PHP 8.1, and I've confirmed this issue on a fresh install of Drupal 10.1.2 and Paragraphs:
Active
1.15
User interface
I am getting the same issue when using a media field as just a field on the node, rather than as a media field inside a paragraph. So I don't think this is a paragraphs issue, I think it's a core one.
Note: there is a paragraphs field on the content type, but even creating a new node and not filling out any of the paragraphs fields I am still getting this issue.