Apparently pre-rinsing confuses the dishwasher or something. Not doing it leaves me with residue all over the other dishes though 🤷
It's not like you need to follow commercial requirements like DIN EN 17735, but that feels so weird to depend so much on the faucets temperature. I can just click a button and get a 70c+ wash or whatever, I wouldn't get that high from my faucet...