Thing I'd like: you know the way that in games now, it's normal to have a "tutorial mission" where you do the basics "now click here to place a house". "turn the speed to 2x by pressing this button", "drag over this area to select all the people there"?
That, but for general non-game software. Esp things like Blender that have lots of controls. Watching heaps of third-party youtube videos and trying to switch back and forth and work out what they're doing is not user-friendly.