After upgrade to Drupal 10

This error goes away when upgrading to the 2.x version, so maybe it simply needs to be documented that Drupal 10 sites should switch to 2.x?

(Or there was something specific to my setup causing this issue for me.)

And other drush commands:

./bin/drush cex

In LegacyServiceInstantiator.php line 282:
                                                                               
  You have requested a non-existent parameter "ckeditor_media_embed_install". 

Actually, this is more of a ckeditor4 vs ckeditor5 thing. If you are using CKEditor 5 on Drupal 10 you should be using version 2. Let's make a note or add a dependency check.