The most fingerprint resistant finish on the market is Frigidaire Pro and Gallery models, they make a great easy to clean finish. LG has many models now that are “print proof” so look for that in the models description. Nothing is zero fingerprint marks but these types of finishes will help keep it to a minimum.
That is true although small traces of harmful chemicals and byproducts they are generally safe to use if vented properly. This is why many towns have codes requiring an outside vented hood when cooking with gas.
Put a manual thermometer in there as food safety is a concern anything above 40 in a fridge is not good and needs to be addressed. I think you may have a defrost timer issue or freon. I would double check manually and call in a servicer if it persists.
Better call the muffin man. Certain types of cookware are not meant for the dishwasher and they will actually break down the finish. Check the use and care guide. I would clean it with some lemon oil to try and bring back its luster.
PZS22MYKFS is the Profile version so the handle matches other Profile models, but most importantly it is much more deluxe on the interior shelving etc., it is of heavier quality. It also has Sabbath mode if required. Basically same fridge…