Target Display Mode
can i use my imac late 2013 os 10.13.4 as dispaly port of my new macbook pro m1 os 12.4?
Hi, unfortunately no you can't.
The 2013 iMac can be used as a display but the computer plugging into it must be 2019 or earlier so any M1 MacBooks wont work on it.
I've included a link to Apple's article:
Use your iMac as a display with target display mode - Apple Support