I know this is a topic that pop ups from time to time, with people saying it's safe due to various methods of mitigation and other people saying that burn-in is inevitable.
I have the Epix 2 since mid february 2022 so it's almost 2 years and half.
I changed the watchface few times and not used all the time the "always-on" display but it was like that for 99% of the time. No wrist activation.
I definitely didn't check for "burn-in" signs, frequently, but something pretty visible started to show up, last week, when i was looking at some DSWs graphs(specifically the yellow graphs of threshold suggestions ).
This is the situation with a pretty much fully white watchface:
The watchface that i used for 99% of the time is one of the default watchfaces:
It's not a really big deal as i'm going to continue to use the same watchface and i'll keep the "always-on" even with a future watch...it's just to show that it can still happen, even with newer models, so if someone is worried about it, better to take other precautions like not keeping the "always-on" display or whatever else is suggested
I have the red shift mode after the sunset.
(yes, i'm aware that Garmin is warning about burn-in and it's considering it as a normal behaviour https://www8.garmin.com/manuals/webhelp/GUID-E5C62F3F-DCE3-4197-8CA5-E419B2A55D12/EN-US/GUID-8ECEF6B4-5257-44E9-BB09-778836BBF700.html)