Upon installing Advanced Module Manager on a Joomla 4 or 5 site, any of the previous assignments from the Joomla 3 version will be automatically converted to the new Conditions system.
So all your modules should automatically follow the same rules you had in the Joomla 3 version of Advanced Module Manager, without you needing to tweak anything. If any issues arise with the migration, please report them to our Support Forum.
J4+ Conditions vs. J3 Assignments
Compared to the Joomla 3 version of Advanced Module Manager, where you had to individually select assignments for each module, in Joomla 4 or 5 you can now create re-usable Conditions Sets that can be shared by multiple modules, and even across different Regular Labs extensions like ReReplacer, Content Templater, and Conditional Content.
This means that the old Same as other module option that was present in Joomla 3 is now obsolete, as now you are able to create and map preset conditions across multiple modules. And if you want a module to show up on all pages opposite to a certain Condition, you can now use the rule "Other Condition Set", select the desired Condition, and mark it as Exclude.