alt Hacker Newssh3d seems like an actual CAD-like tool to actually plan your furniture. what i find fun about this minecraft map is to make my actual home my base in the game, try to make it looo like my home and then just play minecraft while exploring the surroundings i know already.
then again, every building is white and basic, so not that nice for sightseeing.
then again, i could blow up my annoying neighbors house with a couple of TNT blocks (in minecraft!)
I also recommend sh3d to do exactly what you needed: got the plans of my home (straight out pdfs) fed them to an LLM and got the 3D version of it in minutes.
Then started plopping in furniture and such, wonderful experience. Then you can navigate your home as a "visitor" to get a better feel. Definitely more realistic than Minecraft for actual planning.