I started using FreeCAD recently after getting a 3D printer, because I wanted something open source and runs on Linux which I could learn, and would become my CAD tool.

I have no CAD experience outside of what I learned in university over a decade ago, so it has been a challenge.

I have generally found it quite hard to achieve some simple designs, it's not always easy to understand what a tool does from its name, and it's not always easy to find a video online to help. Sometimes you know what you need to do, but can't find the tool for it because you have no idea what it's called in CAD land.

The bugs which cause parts to just disappear when you run certain operations are an issue, and there is little help to explain the cause, I've gotten a few designs into the broken state others have mentioned where you need to undo a bunch of work to recover, which is unfortunate.

On the other hand, I found creating drill holes, countersunk or counterbored incredibly easy and powerful.

I hope to find an up to date video series I can follow to learn more as I'm sure it'll become a lot easier to use once I understand the tools better.