So, have there been any reviewers of the GH5s been able to compare the dynamic range and noise performance of the S version compared to the regular GH5 at LOW ISO's?

Being able to go higher in ISO can be handy sometimes, but I mainly shoot between ISO 100 and 800 anyway so I am interested to hear if there has been any improvement IQ wise in those ranges. Is there fewer noise because of the larger pixels? A bit more DR? Or are they virtually the same there?