A:AnswerThey should if you have a newer MacBook and not a 2012 MacBook Air. The Bluetooth is 5.0 and older models sometimes have issues connecting automatically. You have to go to setting and pick it each time, but on my M1 Mac mini they connect automatically no problem.
A:AnswerMagSafe is wireless charging. If you have the MagSafe charger for your iPhone you can set your AirPods on that charger to charge vs plugging them in.