I gave up, gonna use UUP dump version since apps integration was fixed in 99f ver upd: well something is wrong with apps https://forums.mydigitallife.net/posts/1824643
I edited the metadata thing, apps are integrated now https://forums.mydigitallife.net/posts/1824697 also do not try to integrate LCU, it's not working at all didn't tested LCU reinstallation issue yet on Client build
https://forums.mydigitallife.net/threads/server-ip-ltsc-builds.84158/page-32#post-1824599 Added checksums, SVFSFX repo is added too
The last time I fresh installed Windows Server (21H2 / 20348.1) I used just one ESD file from uupdump (the one with over 2 GB size) and installed it directly using DISM++ (for dual booting) without even converting it to ISO. I wonder if it works for this new Windows Server ESD too.
https://forums.mydigitallife.net/threads/server-ip-ltsc-builds.84158/page-32#post-1826335 SVFSFX Repo added!