Hi,
Guess a lot of people are wondering about this. I use advanced module manager (see here: https://regularlabs.com/advancedmodulemanager) to set conditions for certain modules. For example I want to have a login module on a page ONLY when somebody is logged in.
This used to work in the past afaik, but seams to be not working anymore. Very annoying.
Also see this topic:
https://regularlabs.com/forum/bugreports/49355-advanced-module-manager-conflict-with-sp-page-builder-module
Supporting this feature would greatly help in running a Joomla site.