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Fusion 360 is free for personal use. It could probably do this

Wow didn't expect down votes on that response.

I recommend modeling in Blender and importing to Unreal, which has a library of furnishings and real time rendering.

But only if you budget the time for learning those. Blender might take several hours of tutorials just to be able to create an empty room in the shape of a regular, rectangular box.

Also Blender lacks support for exact measurements AFAIK.

I tried this approach but gave up after barely achieving a rough floor plan after a day's of work.

It definitely takes some doing, and you're right about the measurements.

I often draft the floorplan in AutoCAD first, bring that into Blender...

But the results are amazing. I wonder if a powerful but easy interface could be built as a bridge /plugin for these tools.

I kept the installer for the last free version of SketchUp around for exactly this reason.