in no good legend, I can guess which are gh7 shots. the ones with the old bar tender look sharper than other takes, almost different look or style, it might be taken by gh7. in other words, in order for gh7 to work with Alexa, not only arri log c lut is needed, filters are needed too.
on the other hand, for news and sports, gh7 is perfectly fine, no less than any other cameras.