Sketch up or an easy cad program so you can easily measure your stuff and the rooms to find ways to fit your furniture. I used sketch up when I moved and just a top down 2d quick line drawing of our house. Then measured our furniture as objects and moved them around to see where we could fit and what direction to put our bed etc
I’m not sure. I only recently switched to Linux and was thinking of trying ondsel but haven’t really looked into it further. But I also still have a windows vm on my server with sketchup 2017 in case I need to do anything with that to convert my sketch up projects