I have an update. I was finally able to take the time to do some proper troubleshooting and Dell is sending out someone to replace components. The delay in getting this done was on my side and as soon as I was able to provide proper info to Dell they made arrangements to fix my laptop. I bought the Premium Plus warranty and in my experience it always pays off. 
I've noticed that I often see what looks like thermal throttling while the temps seem fine. I ran HWiNFO and it shows GPU temps in safe ranges, rarely over 70 under heavy load. However, the GPU Hot Spot Temperature often reaches 101 and the power is pulled back when that happens, typically to about 60 - 70 watts. This is with the fans set to full speed. I've seen a few complaints about this issue and the common assumption seems to be a poor connection between the GPU and the cooling system. I have another m17 R3 with an RTX 2080 Super and it's GPU Hot Spot temperature is never more than 10 degrees hotter than the GPU Temperature. Is this something I can address on my own or do I need to go through the warranty process? I purchased the premium warranty which by the way have always paid off.
m17 R3, RTX 2070 Super, thermal throttling