The problem you are having is that you are expecting your new software to work just like your old software. You are expecting it to work the way like you are used to instead of adapting to the new approach.
You see how ridiculous this sounds, when put in these terms?
I had the same thing moving from Autocad to VectorWorks, and the same thing moving from VectorWorks and SketchUp to Archicad 😀
There is a certain amount of effort required to unlearn old habits and learn new ones. When you do this, you can actually learn new things which might actually mean that you can potentially be more productive in your new software than you were in the old.
Only once you have fully learned the new approach can you compare it with the old one you were used to.
I watched the Chief Architect video on wall creation and thought, "If you know how big your plan needs to be, just draw it that size at the outset". You can use the construction lines to offset and move them once you have drawn them. Honestly, it's no biggie.
Archicad is far too complex to have automatic fixed parametric relationships between walls to allow them to be moved by editing the dimensions.
I watched the video on space Planning and actually that's just a gimmick for creating simple layouts really fast. You could build those zones (which is what Archicad calls spaces) into your template and have them there automatically, properly formatted when you want them.
You could simply delete the zones you don't need. Adding doors automatically is also a bit of a gimmick. It's fine until you work with atria, voids and service ducts.
You can configure all your doors as favourites with all the data added, with the materials set just how you like them. Same goes for wall combinations, and your preferred equipment/fittings. You can set up favourites for slabs tagged as ceilings and floor finishes, and you have a lot of freedom with things like railings and stairs.
Similarly adding walls automatically might seem cool, but when you have different wall types in different locations with different fire compartmentation settings, in the 'grown up' world of BIM adding too many things automatically can be risky because they have data attributes attached to them, and too much automation means adding stuff configured by someone else which you might not want.
There is a sweet spot between automation and rigour and consistency. I'm sure you have used templates for certain types of documents, edited them for the new project, checked them all, and later found that for example you forgot to change the page footers with the old project name!
Do this in a BIM model with tons of data and you might get sued!
I've been using Archicad since version 19, and only now have I become comfortable with some of its features. I can build spur shelving, canopies, paths and parapets with the railing tool, and IPS panelling and complex cladding with the curtain walling tool.
I can build complex profile walls to simulate the actual construction of the building and work out how all the junctions are constructed. I have just finished building my own Battery storage components with all the properties I need so that they will come into Revit used by my building services colleagues with all the right data attributes. They will display nicely in 2D and 3D and schedule properly.
Once you have configured your objects as favourites, you will start to be really productive.
Archicad rewards effort put into it. The more you learn the more you get out of the software, and it takes years to be really competent.
I've seen a couple of your posts to date, and you do a fair bit of complaining about how Archicad is more complex and less productive than CA.
Well - driving a pedal car around your garden is a lot easier than driving a real one on the streets or even abroad.
Chief Architect is a toy by comparison. Sure it has its cool party tricks, but before you post criticising Archicad for having limited productivity with certain tools, perhaps you should just get better with using your new toolset first.
You will still find things that would streamline how Archicad works (things like parametric rectangles for all the relevant object types would be cool - Vectorworks does this a bit like CA, and also the ability to turn off visibility of individual line edges in fills) but by and large you should find that there are very efficient ways of doing most things.
We can all pick at problems with Archicad (SEOs not displaying on Plan and the broken Mesh tool are my favourite gripes) but fundamentally you have a much more capable package than CA, and you have to adapt yourself to it, not expect it to adapt to the way your old software works.
Isn't it about finding the best ways to optimise your productivity in any software? Some workflows you can keep, but probably most need to be re-learned.
You are new to Archicad, your 'old ways' are probably causing you to be blinkered and held back 😉
Have a look at Jared Banks' Shoegnome Architects blog. There is a ton of stuff there you'll find really helpful. His work is very different to mine, and he's in the US (I'm in the UK) but I still find it useful and interesting.
Archicad 25 UKI | OS X 11.7 Big Sur