Someone on /aco/ made a greasemonkey script that auto-resizes the thumbnail images to full size. Makes the current situation slightly less of a pain in the ass.

https://pastebin.com/raw/ACkng5Wz

You may need to add this line under the existing // @match line.

// @match https://thvnext.bing.com/th/id/*w=*&h=*&*