Didn't you leave out that [Google's browser] allows [Google's websites] to do things [other websites] cannot?
Ostensibly [Google's websites] are websites like any other, but [Google's browser] treats them differently. IIRC Mozilla does similar things for addons.mozilla.org, but googles seem more broad since they are not as clearly linked to browser functionality.
My reading of your comment was defensive of google, basically "google ships a software package so of course they should be able to do stuff others can't" where I tried to highlight "google ships a browser which should of course treat websites equally". Seems like I misunderstood the intent behind your comment.
Ostensibly [Google's websites] are websites like any other, but [Google's browser] treats them differently. IIRC Mozilla does similar things for addons.mozilla.org, but googles seem more broad since they are not as clearly linked to browser functionality.