CAD is a bit like programming, there’s a lot of ways to do any given task. That can make it tricky if you are doing some tutorials that use one workflow, and then start doing tutorials that use a different workflow.

If you want to learn it, do yourself a favor and take time to find a tutorial that goes from start to finish doing the type of project you want to do so you don’t get frustrated when you get midway through.

Like others said, if you are used to doing something in a different CAD software, you might find that the same workflow is clunky in FreeCAD, but if you start out with a workflow that works well in FreeCAD, you are fine.

Seems like a lot of great changes

I don’t think this is android specific, but having the IR LED that allowed you to use your phone as a universal remote. I get that lots of TVs are getting fancier remotes that communicate in other ways, but there are still plenty of applications of the IR LED.