Can you tell me more, which GET requests, which URLs? I only see requests for the map tiles as the page is scrolling. (Try in incognito window with extensions disabled to make sure you don't have an extension interfering with the page.)
Author here, I agree with this sentiment! Just wanted to note that it's not the first map: there is an unofficial iOS app with a full Paris map and another web map easily findable on Google. I just didn't like any of the existing maps:). More context and making-of of this map -> https://newsletter.pnote.eu/p/mapping-space-invader-mosaics-...