YMMV, but in my experience this happens mainly when the MacBook has been sitting under something else or packed tightly in a bag. I never see it if the laptop has been closed with nothing applying pressure on the lid.
Not that this isn’t a design oversight, but it might be mitigable until Apple makes design tweaks to fix it.
It's been a thing for 10+ years, I don't think Apple has any interest in design tweaks. I have seen the marks on my new MBA M2 after just closing the laptop and carrying it in my hand for 2 minutes. I wasn't gripping it tightly or anything, just carrying it like a normal human would carry it.
Interesting. I wonder if maybe the smaller models (Air, 13" and maybe 14" Pro) are more prone to this? I've had very little trouble with it on 15" models from 2015 onward or with the 16" M1 Pro.
I got the marks all the time on my 2016 13" MacBook Pro, too. I even had the keyboard (and by extension battery) replaced in that machine, and Apple "professionally cleaned" the screen. There were still some permanent keyboard marks on the screen after the cleaning. It's not just oil, but permanent abrasion marks after a while.
I don't think there is anything to tweak. It's probably designed to have less than 1mm when closed normally and the pressure of being in a book bag will easily flex the aluminum that much, if not bend it. As other said leave the original packing cloth in it and use a hard shell carrying case that won't put pressure on the laptop.
Not that this isn’t a design oversight, but it might be mitigable until Apple makes design tweaks to fix it.