Used mediacreationtool to clean install Win 11 Home 24H2, then updated from 26100.1742 to 26100.1882. Unable to run faststone image viewer 7.8 and Doom Eternal, so far .
Sorry to hear that. My CPU is older than yours e5 1680v2. Upgrading no problem to 24H2 using this method.
I think some registry settings or security applications prevent you from upgrading.
Rufus 4.6 will incorporate those extra regedit commands into the codes to facilitate inline upgrading.