The notion that GPU chips can be "run into the ground" by years of crypto mining or AI workloads has been debunked pretty thoroughly by now. The hardware is quite resilient, it doesn't really fail at a higher rate.
I bought a XFX RX 580 that was used for cryptomining from eBay, used it for 3 years then handed it down to my son who used it for 2 more. It still worked when he removed it. Can confirm.
I used an AMD Radeon 7770 for years, then I upgraded to a GTX 1060, the 7770 became my younger sister's GPU for her PC. It has only recently gave out, after some 14 years of service.
Likewise for the 1060, its still going strong. I upgraded to a 3060 round about the time my younger brother decided he wanted a PC so he is now using it without any issues. About 10 years use out of it, plenty more to go.
GPUs are pretty damn resilient if you aren't pissing around with them.
Also any miner worth their salt knows to undervolt to save power (=money), run cooler, last longer, and run at very close to full speed or even in some cases 100% full-speed, depending on silicon "lottery".
I think the problem is the distinction here between chips and boards. The entire GPU assembly can absolutely be worn down from continuous use, thermal pads, paste, VRMs, fans do degrade. The chip itself may be fine but it's very rare to find anyone willing to transplant a GPU from one board to another.
