The idea of copy/monitor sounds enticing but from my experience it is not a feasible option in any version of Revit.
The models that we get from architects (especially in the DD phase) are usually a huge collection of warnings like overlapping walls or walls missing their target.
But even if the arch models are good there remains the big issue that Revit "sucks" when it comes to copying wall openings, i.e. openings have the wrong dimensions, are not in the right place, etc.. That means a lot of manual work is required to fix these issues.
At this point the purpose of copy/monitor becomes moot.
Our approach is to copy the arch model into ours either by "bind link" or Dynamo script. Depending on how "bad" the arch models are we have to fix them before this process.
Then we replace the opening families (doors/windows) with simplified families like doors that consist only of an opening cut. For our bigger clients we have these families saved and just load them after copying.
Revit 2022 brought the option to hide non-core layers of walls in plans (though this feature still has a number of bugs) and that makes it a lot easier to use architect walls, provided the architect defined the wall structure correctly (but most are pretty good).
To keep track of architectural changes in bigger buildings we use Navisworks which comes as part of the AEC suite that most of us have as subscription nowadays (voluntarily or not).
If an architect requested copy/monitor I would politely ask them to deliver a model that has zero warnings and does not produce any during copying (very unlikely unless it is a simple box).