Try rereading the whole tweet, it’s not very long. It’s specifically saying that they plan to “correct” the dataset using Grok, then retrain with that dataset.

It would be way too expensive to go through it by hand

The middlware that stream uses to run Windows games doesn’t yet (fully) support HDR normally.

Valve has a bodge that works for the steam deck using gamescope, and while (iirc) it’s possible to get that to work in regular desktop kde, it’s a bit of a pain.

Broader support is coming though