I think it's highly dependent on the particular hardware.
I have two HP EliteBook G8s, one AMD one Intel. Both work perfectly with Linux, although they don't support S3, only the "modern" standby.
The AMD one randomly craps out if suspended in Windows. No idea what it does, but it gets extremely hot and doesn't respond to anything but a hard reset. Sometimes it reboots on its own. Maybe because it gets too hot? No idea.
The Intel one also sometimes gets fairly warm for no reason (I keep it up to date, so it can't be random updates - also happens in my bag, so while unplugged). But sleep now mostly works fine. For the first year or so it would sometimes wake up with a garbled screen.
Those are both your regular basic enterprise laptops, no dedicated GPUs or anything fancy.
I think it's highly dependent on the particular hardware.
I have two HP EliteBook G8s, one AMD one Intel. Both work perfectly with Linux, although they don't support S3, only the "modern" standby.
The AMD one randomly craps out if suspended in Windows. No idea what it does, but it gets extremely hot and doesn't respond to anything but a hard reset. Sometimes it reboots on its own. Maybe because it gets too hot? No idea.
The Intel one also sometimes gets fairly warm for no reason (I keep it up to date, so it can't be random updates - also happens in my bag, so while unplugged). But sleep now mostly works fine. For the first year or so it would sometimes wake up with a garbled screen.
Those are both your regular basic enterprise laptops, no dedicated GPUs or anything fancy.