For FreeCAD help, it’s best to use their Forum and tutorials.
Just like Kicad’s having integrated App’s (PCBnew, Eeschema, BitMap…etc) and Plugin’s, FreeCAD also has intgrated App’s and plugin/macro’s.
In FreeCAD, the App’s are called Workbench’s and Macro’s.
Coder’s of these try to imitate real App’s and have come a long way since day one. But, like most Open-Source App’s, what things get named/called depends on the Coder’s…
Example: SolidWorks uses the words “Extrusion” and “Cut”, FreeCAD uses the words “Pad” and “Pocket”. But, they do the same thing.
It’s like Starbuck’s: They have what they call a “Pour-Over” but, other’s call it “Drip” coffee. They are the same thing - a paper-cone with grounds and hot water poured over it.
(Next time at Starbuck’s ask for a “Pour-Over” - it’s not on the posted Menu but, they all do it. And, it’s the best drink they have IMHO)
You are using the “Part” workbench. I use the “Part-Design” workbench and the Toolbars/Tools and Menu items are different.
“Part” is like those minimal 3D App’s included in 3D-Print software (based on Primitives).
“Part-Design” is like real CAD programs such as SolidWorks, Inventor, Pro-E (based on Parametric’s and Primitive concepts)… Get it? Learn to use Both (and Draft workbench, too).
“Unamed” changes to the Filename when you Save the project.
Kicad will export Step’s of PCB’s that contain Footrpints made with Step models. No problem.
The Vid below shows PCB with a 6050MPU (step) and an Arduino Nano (also a step). They were made in FreeCAD, used in Kicad’s Footpints, Then, Exported from Kicad as Step. Then, Imported into FreeCAD…