Can iPhone 12 pro max be polished on its sides?

Ok.. so I’m going to buy the iPhone 12 pro max in silver, I’m seeing that people are saying that the stainless steel sides are PVD coated.. can that be polished like I polished the Xs Max and 11 Pro max on its sides? .. Those seem to be the areas my phone gets scratched even in a case... I polished and buffed my last two phones with no problem but people are saying that was raw stainless steel... this is supposedly PVD coated... or is the other colors that are PVD coated... so Confused. Can anyone answer this for me... and if all colors are PVD coated can I polish with cape cod metal polishing cloths like I did before?

​[Re-Titled by Moderator]