I think the abnormal allocation under /run/udev/data is affecting everyone, it just doesn't fill the 32MB for people with lower core counts and lower pci-e lanes + associated devices.
Please fix the allocation issue, must be a bug introduced with 6.12.8 as it wasn't happening in 6.12.6, or give us a way to increase the size of /run that is not a line in the go file as there are services failing before that runs and it's messy and potentially unstable to fix it that way.
Atm only 2 users reported it, but i bet since the release was on Friday, many high core count and pci-e lanes users did not upgrade yet, for sure there are many that I know of on Discord with similar systems which are gonna have the same issue.
TLDR: if you're one of those users, do not upgrade yet