I've been involved in this thread since the beginning. I purchased the top spec macbook pro 2019 16" and it was faulty out the box, restarting every 10-20 minutes and also restarting as soon as I opened any apps.
It took 4 months and multiple logicboard repairs (also faulty) before apple issued a full replacement, which has been ok but restarts maybe once per week.
The restarts seem GPU related...and what do you know, apple have gone and silently refreshed the macbook pro 2019 16" with a AMD 5600M with HBM2 memory.
So I called apple about upgrading my GPU, considering I have AppleCare+ which usually allows you to upgrade to the next model for cheap if you exchange it.
Here's the funny part...the $500 I paid for AppleCare+ has been lost by Apple! They forgot to move it from one of my faulty macbook pro 16" 2019's to my replacement, and now according to them I don't have AppleCare+!!!
So apple have essentually stolen $500 from me and don't seem to care much about rectifying the situation! I've attached a screenshot of my device in the apple support app, you can see it says I only have the limited 1yr warranty with it.
How pathetic! 4 months of run-around from apple with multiple replacements, and now this!
Apple!! Can you sort yourselves out please because this is a massive joke! Either apply my applecare to my replacement machine, or refund me $500!!! I'll be sending a drip-fed email campaign to all 100k emails attached to the apple.com domain in the meantime until someone takes notice.