[grishka]

> They cost money, but there's ways around that

I checked out what one well-known torrent tracker has to say about these extended updates, and sure enough, I found a torrent called "Windows 7 Ult + KB3125574 by killer110289 (х64) (Ru) [10/04/2020] + авторский загрузчик + Office 2019 (2020.03) RePack by KpoJIuK + ESU Update март 2022" and several others which apparently have those updates applied.

I also wonder what would happen if you build a windows image out of 7's shell/explorer but 10's everything else.