if you haven't already ordered, consider something like this as well since it's a bit more versatile. i got a lot of uses out of it
this specific model is OOS but you should be able to find similar ones, good luck!
The G8's are a mess. LCD cables get damaged due to the hinge design it seems and some times it's at the board level. We have both AMD and Intel. The Intels seem to have better quality control (fewer failures) than the AMD's. There's also a slight design change between the two. Anything MB related we ship out to a repair center. Everything else is in house.
If you don't have one I also recommend picking up a USB-C tester to test the ports. It'll save time in diagnosing if the issue is the port or charger. I picked this one up and am happy with it.
https://www.amazon.com/KJ-KayJI-Multimeter-Resistance-Temperature-Adjustable/dp/B08CXMBB75