Here are the two pictures. One is the Board. The other is the AFCI switch. It does have 2 white wires and a black.
If i replace this with a regular Siemens switch. Where do i connect the White wire? Does it screw in to one of the screws to the side where all the other white wires are? To the Left of the switch? I assume the black just goes into the the new switch.
Your Breakers with the teal (greenish blue) square look identical to the ones that trip in my apartment. The living and bedrooms all have those breakers that I am describing. Are those the ones that trip for you?