It is not advised to use Ventoy for installation of openSUSE. Ventoy is known for altering the installation parameters and media, resulting in a broken or not even bootable system. The forum is full of reports of broken systems because of Ventoy.
Latest report: Installation failure , only boots into rescue mode
Recommendation not to use Ventoy:
https://en.opensuse.org/Create_installation_USB_stick#Ventoy