Hello,
The new repair function is basically the same repair install (aka: in-place upgrade), but the image file is just downloaded via Windows Update instead of using an ISO or USB.
https://www.elevenforum.com/t/repair-install-windows-11-with-an-in-place-upgrade.418/
I would always recommend having an updated Windows 11 installation USB handy in case you may need to boot from it or clean install Windows 11.
https://www.elevenforum.com/t/create-windows-11-bootable-usb-installation-media.750/