There are "portrait", "product" profiles with LUTs that provide different looks.
What's that got to do with ProPhoto RGB?
Something is happening behinds the scenes here as in most raw converters. Few of it has anything to do with ProPhoto RGB I suspect. Pretty clear the colors coming from the sensor and stored in the raw file is not in Prophoto RGB, that's not possible.
Here's the deal though. There's only
one ProPhtot RGB. It was designed by Kodak with a non ambiguous set of parameters. Change a single value, it's no longer ProPhoto RGB. It's a synthetic color space that defines '
colors' we can't see (so I submit they are not colors). It's not based on any capture or output device. There is no such thing as
LeafLF2/3-Prophoto RGB.icm. It may or may not be ProPhoto RGB and if the chromaticity, white point and TRC match ProPhoto, let's just forget anything to do with LEAF. Nikon did the same silly thing with sRGB, another example of companies making color management even more confusing than it is and for no reason.