Thank you for notifying us of the specification change of Conditional Logic.
I use Metabox on many sites, but on some sites the Conditional logic created by the Builder stopped working at all.
Custom Field saved in Builder doesn't work, so some of them work correctly when I register with PHP Code.
Broken custom field registrations by builder when it automatically upgrade from Builder 3 to 4, and move to PHP code registration one by one.
Builder instability makes me uneasy. If you are using WordPress as your CMS framework, it may be safer to register in your PHP code than using the Metabox Builder. We want to build a more practical UI on the CMS backend.