It is an issue related to a display.
DCP == Display Co-Processor
It could be related to an external display, or possibly an external adapter/dock/hub/cable which has a display connection or has display features, or it could be the I/O port on the laptop, display cables, or the Logic Board itself. There is even a possibility of a macOS bug which certain hardware configurations involving displays can crash the system with these DCP Kernel Panics. As you can see, there are a lot of possibilities here with very few actually involving a hardware issue with the M-series Mac.
We have seen lots various DCP based Kernel Panics on this forum, but very little useful information or feedback from users. This is not something that is easy to troubleshoot. The first level Apple support agents have no clue about what they are doing when it comes to this particular issue since they do not understand Kernel Panics. You need to have Apple support escalate your issue up the chain so you can get assistance from an Apple engineer who understands Kernel Panics.
You can also help out by trying to identify whether any particular external device is causing this problem. It is best to do the testing with a clean install of macOS. A clean install of macOS is when you erase the disk followed by reinstalling macOS......just do not install any third party apps or restoring from a backup just in case there is a third party software component associated with the issue. Test thoroughly a clean install under these conditions. If you cannot reproduce the problem with a clean install under these conditions, then you can try reinstalling third party apps one at a time to see if & when the issue comes back. Restoring from a backup although that will likely bring back the third party software causing the issue unless you only bring back the home user folder(s) & your data.
Either you will figure out the source of the problem, or you will be able to provide Apple engineers with some valuable information regarding the issue.
