Bro its good that the update is delayed because after the one Ui 7 the screen is stuck on the boot loop or the green or pink line issue or in other case the mother board is damaged in the update process. So the only option is to wait patiently and wait for the update without any bugs.
You will be get One UI 7.0 stable version update may be in next few days. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
