How they can have a "Pro" line without even an ECC option is mystifying to me.
I'm aware that you can buy ECC DIMMs under the Micron brand, but they badly lag behind on speed and I doubt they support XMP or EXPO.
ECC is less about speed and more about reliability.
Most "enthusiast" RAM is actually way outside of the specified standards, so when ECC sticks with the standards, people complain, but that's actually what DDR4/5 have specified, much much slower than what the "gaming" RAM speeds achieve, and for a very good reason.
If you do not care about accuracy and reliability, just steer away from it, since that is the only concern for ECC users, and comments like yours just show how outside of the target users you are.