I was just reading Björn Ottosson’s article. In it there is a summary of the various models and two new models are proposed：
|Simple Geometrical Shape||yes||yes||yes||no||no***||yes||yes|
|Max Chroma at Edge||yes||no||no||yes||no||yes||no|
We can see that “Lab-like” has the most “yes”. One of its shortcomings is “Orthogonal Saturation” which is not well done by other models. The other is Simple Geometrical Shape:
LCH has a dynamic color picker. But it tends to be triangular, which is an advantage: it is always “low saturation” in areas close to white and black. However, the current three-level color selector is only the HSL model.
GIMP also has an LCH color picker. It may be made by cielab, so the hue is a bit strange. The LCH produced by Oklab is more ideal. It is said that photoshop2022’s new update on gradients uses oklab