The truth is that noise as analyzed “rigorously” is dumb as it comes. Because pattern noise is a much more concerning issue than some 0.2 stop difference in sensors.
That’s why my #1 concern with the Sony A1 in terms of image quality is not some masturbation over fractional-stop noise differences*, but whether the Sony A1 has pattern noise anything at all like the troubled Sony A9, or well-controlled noise like the Sony A7R IV.
Because if you want a single Sony camera body suitable for sports/wildlife and landscape, it remains to be seen whether it has PDAF banding issues or not. If the Sony A1 turns out to have PDAF banding issues, then it is a non-starter for landscape.
* Unless you are already an expert at maxing out ETTR exposure to within 1/3 stop (AE won’t get you there)—and even then—of what relevance is a 0.1 or 0.2 stop noise difference?