pirate solidworks. fuck dassault systemes, but they make a damned good cad program, with excellent documentation on how to do just about everything under the sun (and some stuff that even the sun don't shine on)

use a win10 ltsc VM with device passthru for running it, it won't know the difference.

for 2d your best bet would be qcad (free) and draftsight (paid). some distros have qcad in their repositories.

a little more sophisticated would be freecad with its bim workbench and blender with the bonsaibim addon. both of them let you draw in 3d and print floor plans off of those model.

for a quick mockup you can try sweethome3d.

FreeCAD: Your own 3D parametric modeler

FreeCAD, the open source 3D parametric modeler

^{www.freecad.org}

If you want to do accurate calculations, wall thickness, exact angles, window sizes etc., I would recommend FreeCAD, especially the draft workbench and possibly the BIM workbench if you want to go 3D afterwards.

Tutorial FreeCAD draft workbench (2D):

Tutorial FreeCAD BIM workbench (3D) as a follow-up:

If you are more looking for a rough planning where you can test furniture placements, floor designs and see fast results, I recommend The Sims 4 (no joke!). The base game is free (also available on Steam) and it's quite easy and intuitive to move stuff around, change a wall, place decorations etc.

I did something similar recently, old house, wanted floor plans for renovation / idea generation.

Initially I started with FreeCAD and used the BIM functionaly, worked well, but a few bugs at time.

I've done a few smaller scale models of some rooms recently in [Bonsai](bonsaibim.org/(formerly BlenderBIM), and found the process a little more pleasent. This could be due to my previous blender experience and the hotkeys being more on my bones.

I think everyone's got the CAD/3D programs covered, so a slightly "out there" answer:

If you're just doing 2D blueprints for yourself, do you actually just need a 2D vector program for doing a scale drawing with measurements?

I've done a lot of floorplans / layouts/ site maps etc using Inkscape, for instance.

It depends on exactly what you're wanting out the other end - so you may be lacking a lot of the features in a full CAD program, but the learning curve is comparatively so shallow that you might have a working plan by the end of the day, rather than the end of the month.

So far I used SweetHome3D, Onshape and Qelectrotech (for electrical) for the renovation of my house.

However if you are planning to do some heavy renovations in your house I would advise you to get an architect to do a proper blueprint of your house and a blueprint of what your house would look like after renovation.

It's not necessary, it might feel like it's extra money up front that you don't use directly for renovation but in a big project you save so much in the long term. This is what we did and there is so many (expensive) mistakes that we avoided because we had an expert eye at the beginning of the project.

I’m in need of a CAD program with an easy aproach for someone with zero experience on this type of software.

If you have zero experience with CAD, but some experience with programming languages or things like LaTeX, JSON, XML, HTML, etc., I'd suggest giving OpenSCAD a try. While it is definitely for more advanced users, it managed to instantly click with me, in contrast to FreeCAD and others I just couldn't get into (or rather back into, since my AutoCAD lessons back in school >20 years ago). That it allowed me to work work on CAD drawings in Emacs helped too...

OpenSCAD

^openscad.org

Is that top right image from a real Economist post or it is edited? I did not find it by simple search (search is so sloppy of late).

Edit:
Link to article.

Europe had been moving towards the slaughterhouse for years, and by 1914 a conflict was all but inevitable—that, at least, is the argument often made in hindsight. Yet at the time, as Niall Ferguson, a historian, noted in a paper published in 2008, it did not feel that way to investors. For them, the first world war came as a shock. Until the week before it erupted, prices in the bond, currency and money markets barely budged. Then all hell broke loose. “The City has seen in a flash the meaning of war,” wrote this newspaper on August 1st 1914.

Could financial markets once again be underpricing the risk of a global conflict? In the nightmare scenario, the descent into a third world war began two years ago, as Russian troops massed on the Ukrainian border. Today Israel’s battle against Hamas has the frightening potential to spill across its borders. American military support is crucial to both Ukraine and Israel, and in Iraq and Syria the superpower’s bases have come under fire, probably from proxies of Iran. Should China decide it is time to take advantage of a distracted superpower and invade Taiwan, America could all too easily end up being drawn into three wars at once. The rest of the world risks those wars interlocking and turning into something even more devastating.

What a third world war would mean for investors

Global conflicts have a habit of sneaking up on money-managers

^{The Economist}