No...?
It's been 10 years since I stopped overclocking, modding, unlocking and so on. It was fun when I was a teenager, but really seem to have been a waste of time. I should have just spent more time outside or learn German instead.
No. "Gaming" cards are not altered "pro" cards. It's just a chip which can do multiple things. Firmware and drivers tell him what to do.
The reason why gaming chips have ECC functionality included (but blocked) is fairly simple: there's nothing special about ECC. Pretty much all CPUs and GPUs sold today are ECC-compliant.
Manufacturers are using ECC as a factor in lineup segmentation, which really makes sense.
It's not like ECC is crucial for what most people do with their PCs and ECC RAM is more expensive.
Sure, we could suddenly make all computers use ECC.
But sooner or later someone would notice that consumers are paying a premium for a feature they don't need, so it must be a conspiracy by chip makers! Just look how people reacted to RTX.
And the overclocking crowd would soon decide that they miss the non-ECC times, because they could OC higher.