CAD is going to be your achilles heel, unfortunately.

If Blender can do what you need, then you are fine, but if you need CAD for things like architecture, I’m afraid it’s one of the most painful gaps in Linux, currently.

Try Bazzite first. If you find you need more control, then switch to Fedora KDE.

Avoid POP_OS for now. Their new desktop environment is currently in beta and it still has some bugs. When it finally releases later this month and the remaining bugs have been fixed, it may be worth a try. The nice thing about Linux is that it’s very quick and easy to install, so you can try different distros quickly and easily.

I recommend getting yourself a dedicated thumb drive and put Ventoy on it. Ventoy lets you selectively boot to any iso you put on the thumb drive. It’s just wonderful.