Hi DasFrodo,
I come with a background in architecture, working with Max most of my career (20 years) and have tried to shift to C4D for 5 years, but for myself it's the other way around. I always fall back to using MAX, certainly with ArchViz.
The boot time is ridiculous compared to C4D, it's like working an old HD instead of SSD, but on the other hand when it's opened geometry loads/imports quicker and really ridiculously large scenes are easier to handle. Especially also with the Revit or FBX you would get send when working in ArchViz. That's also an advantage in my opinion that's better in exchanging and handling files from architects and rebuilding / repairing / preparing the files as it also recognizes the layer structure, instances etc. Also easier to swap only certain aspect (layer or block) of a building when the design gets another change. Architects also always forget to export with the Y facing upwards.
I don't need the object manager as I find it unnecessary as most of the geometry is fixed. If you are building the design or 3D yourself and converting objects to an editable poly's leaving an UVmap on top is sufficient for me. I like to see geometry as clean and simple as possible with preferable quads. The List (H) has been there before a layer structure similar as Autocad and Revit was inherited in Max. Easier to select one of your object and see the (procedural) changes made i.e. in the modify tab, but that won't replace your desired object manager.
When pressing F12 the transform window will open. Left side shows the current state (position, rotation, scale depending on which command is selected) and on the right you can 'add to' your position so it moves a 20cm or fill in .2 if your display units are meters.. If you need to calculate stuff, there is a script window on the left bottom. Very handy to use as calculator should your need one on the fly. Quantization is possible with angle snap, spinner snap which you can define yourself.
Most people I know mostly work with commands instead of toolbars when modelling or unwrapping, based on how each person altered the UI and which letter triggers what function. Looking for command icons your don't know if they exist and how they look like is a frustrating process that comes with a new package I suppose. Had the same when learning MODO and cinema. Pressed L accidentally in C4D and couldn't move an object anymore.. Help.
Then non destructive workflow is manageable but in ArchViz most of the time redundant. I could start with a line, extrude, edit poly modifier, edit poly2, 3, 4 etc?, UV, UV transform, secondary UV for ID2,3, if all changes are fairly easy to make by just moving i.e. the top vertices of the wall up or down keeping much lighter and cleaner topology and have a for example generated from the wall border (3) skirting as a loft or sweep if you want it easier to adjust. If you're working with Revit or Fbx files you won't need any procedural adjustment and you just deal with it.
Completely different program and style than C4D and you probably won't ever like MAX especially it's UI.
Best of luck and hopefully it'll be as painless and short as possible for you.
René