As others have said, Freecad is actually really good once you get used to it. I use the real thunder fork for the sake of the Topo naming fix. I have also used openscad, but only if I'm making something customizable to share.

Same. I use torx for everything. Also gotta love the square Robertson ones, they're just not common where I live. I hate Philips, although for anyone not aware, there is a difference between posi drive an Philips and going to the effort of making sure you have the correct one massively reduces torquing out and damage to screw head.