The Sony software says 400%, but is showing soft (somewhat blurry) pixel edges. Normally, in most applications, at 400% pixel edges would be distinct. That implies that although you may not have applied any corrections in the Sony software, the Sony software may be applying some adjustments by default. I’m curious as to why the Sony preview looks so fuzzy at 400%.
The edges in the Sony preview look nice and neutral, which seems like it might have already applied chromatic aberration correction.
I’m not familiar with thhe Sony software, but many applications supplied by camera companies try to replicate the exact look dialed in at the camera. Meaning the color/tone treatment, sharpening, noise reduction, etc. that was set in the camera either by back panel settings or by the camera “look”/scene settings/custom user preset that was in effect for the shot. That may make the rendering in the camera maker’s software look different than the default rendering in Lightroom or in applications by other independent developers.