Agree on both counts. I use debian unstable and is usually 50/50 on whether the machine will reboot on a working display after a kernel upgrade. Very easy to fix if you have a bit of knowledge, but certainly not ready for the general public.

I don't have a laptop with an nvidia card, but I often suspend the linux gaming machine on my living room, and sometimes it doesn't come back from sleep, while my steam deck never failed to.