ECC is fully supported by consumer AMD processors (at least Ryzen 7000, and I think earlier ones too). You need to pick a matching motherboard, most boards from ASRock will do. And you need to find unbuffered ECC RAM, this is more difficult than the previous two and is why I had to give up on the whole idea.
Related post:
https://sunshowers.io/posts/am5-ryzen-7000-ecc-ram