This look is driven more by lighting than by Lightroom alone. The main clue is the hard light: a small light source creates crisp, well-defined shadows, and the lack of much fill light makes the dark areas go nearly black. That strong contrast gives the portrait its punch and “fashion/editorial” feel.

Other factors help:

• Muted wardrobe colors already keep the palette controlled.
• The background is light gray, not pure white, which keeps separation and avoids a blown-out look.
• The image is not truly low-saturation; colors are still present, just not overly vivid.
• Selective desaturation by color range can help tame certain hues and keep the tones balanced.

In post, aim for subtle color control rather than global heavy desaturation. Retouching may also matter because hard light emphasizes skin texture and imperfections. Dodging and burning can refine shape and highlights, but it’s likely a supporting step rather than the main reason for the look.

So: start with hard, directional light and minimal fill, then use restrained color grading and retouching to polish it.