It seems source of the news is just single X tweet. I'm not saying the one who made that tweet is lying, but there's possibility the actual reason/cause is something else.
Such update can really affect those who have full node on their device.
And anyone who copy/write a lot to their storage drive.
Well I guess its true and people could read here
https://www.windowslatest.com/2025/08/20/microsoft-is-investigating-windows-11-kb5063878-ssd-data-corruption-failure-issue/That's so bad since they release an update like that without checking if its really working and will not damage to their clients.
Lucky I didn't think about updating my windows 10 to 11 since it happens this is really huge hassle on my side for taking out their current latest update.