Somewhat.
All this fuse does is tell AMD that the chip has had custom clocks or voltage applied to it (this appears to also apply to underclocking and undervolting as far as I can gather)
It does not prove that if the chip is faulty that it must be the OC/undervolt/whatever that caused it.
Think of those water detection strips in other products. They can tell the manufacturer if something has been in a humid environment, but just because it has been doesn’t guarantee that that is what caused the fault to come about.
Yet Apple throws those phones out of warranty regardless of what caused the fault
That was years ago, the phones have been waterproof for a long time- I would certainly file a warranty complaint with Apple if my waterproof iPhone was damaged from humid air, rain, falling in the tub as it’s rated to survive all those things. In fact, 5+ years ago people were doing tests dropping phones down 30 feet under water and bringing them up just fine.
Laptops on the other hand are not rated for water, and you’re right, a laptop full of purple spill sensors gets denied unless you bitch hard enough.
https://support.apple.com/en-us/HT204104
Apple will not cover water damage, even though the phone has protection.