Some of these features look useful, but their example animations make me feel inadequate.
5.000 + 2mm
Or: 5.000 + 0.2cm
I don't know when Inkscape started doing this, but I just gave it a go one day because it felt like something I would put in (and to their credit, they did).Can you talk more about it? What kind of things are you designing? How detailed are the designs?
Inkscape's snapping, aligning, and layering features make it a good tool for this as long as you need nothing more than 2D views.
I also use Inkscape to prepare the (plywood, MDF) sheet sawing instructions for the lumber yard. They love it when customers present them with a clear overview for the cuts (and I love it when wood I order is cut correctly). For me it's useful to use a single sheet as economically as possible.
I'm using draw.io for floor plans to get a basic sense of spacing for bigger projects. Inkscape looks like a good fit for smaller ones.