Re: 3 wires on bottom oven heating element?
Logic would dictate that one side comes from the thermostat and the other is a return NOTE it is not uncommonto have a “live” feed and a “switched” return in appliances, ALWAYS UNPLUG BEFORE POKING AROUND
If you have 2 heating elements on the same circuit, yes they can be looped….or it may just be a looped return from another circuit(saves wire!)
That they’re both the same colour would suggest they have the same function.
for future reference, a digital camera is the best thing to record before you disturb!