Update Started at 04.41 PM and Ended at 7.43 PM today. And cancelled all of sudden and downloaded in One Go and Installed successfully.
One UI 7 and Android 15 seems to be smooth for S24 Ultra as of now and will be known if there issues in future (as everyone complained).
For those who did not received, keep checking software update and update the Samsung store apps Once One UI 7 and Android 15 is installed.
