You linked to the EaseUS homepage and not Microsoft docs.
Also, from the very same page you linked:
What’s BIOS
BIOS is abbreviated from Basic Input-Output System. It was born in the 1980s. Though it has evolved and improved over time, it’s outdated as the vast majority of the computers you can buy now using UEFI rather than BIOS.
I am not sure why we need to argue this.
UEFI has vastly superior capabilities over BIOS, even when it retains backward compatibility.
Yes, a Ford Model T is a car, but nobody would compare it to a 2020 Tesla Model S.
Sorry for bringing this topic up.