I'm at 22631.2428 with Windows 11 Education. Does anyone have an explanation why I am not offered the update to 22631.2506
226x1.2506 is a catalog only update but i believe with the function to get the latest updates as soon as they are released switched to on you should get it offered too, at least i got it offered on my 22621 install. EDIT, i don't get it offered on my 22631.2500 VM either, only on my 22621.xxxx installs.
I flipped the switch to get optional updates. I got the update for 22621. Not with 22631, I haven't taken any tuning measures either, my Windows is clean without any tools
If the build that would be released also is 22631.2428 then yes, considering the OEMs got 22631.2428 too it will be most likely the build. Whatever build gets released it will be just a LCU difference.