Can't restrict custom blocks for specific content types

Problem/Motivation

In Drupal 10, at URL /admin/structure/types, I tried to set specific custom blocks for each content type. When user creates a new page for different content types, all blocks are still available.

Steps to reproduce

1. Set specific custom blocks for Gutenberg experience at: /admin/structure/types/manage/content_page?destination=/admin/structure/types. In this case, every block except for "Full Width Container"
2. Set specific custom blocks for Gutenberg experience at: /admin/structure/types/manage/landing_page?destination=/admin/structure/types. In this case, all blocks.
3. Create a new page for 2 content types and all blocks are available and not restricting.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes