Please add logic so if the user updates one but not both of PPB / WP the link will still work.

WP 6.6:
/wp-admin/site-editor.php?postType=wp_block should redirect to /wp-admin/post-new.php?post_type=bg_block

WP 6.5:
/wp-admin/edit.php?post_type=wp_block redirects to /wp-admin/edit.php?post_type=bg_block