I have a custom post type with a custom block to collect required data and store it in post meta data or standard fields like title or slug, so I don't want to display the Title block. I can't disable title support in the CPT, because too much else depends on it.
It would be OK to only hide the title until the post has been saved.
I did see one relevant post on here but it was for the Gutenberg plug-in and I didn't know if I could adapt it for current versions.
Has anyone any ideas?
** Since there seems to be no JS option, my final solution was to hook into the admin_body_class filter to add a class with the post type name, then an entry in CSS to target and hide the title for specific custom post types.