In your career as a designer you will design many oddly sized and shaped boards including circular PCBs. You need the power of Altium Designer for these jobs.
Copper shorts can be identified with testing. Make sure you define test requirements in your PCB design software.
Forget about using antiquated design software with a command line interface. Altium Designer gives you access to the best features
Lead-Free RoHS compliance in your circuit boards is a necessary factor to consider and PCB design software should be aware.
You can prepare your design for manufacturing with PCB Cart thanks to the manufacturing and supply chain tools in Altium Designer.