In addition newer UEFI BIOS Updates often resolve installation issues commonly experienced with the updated GRUB2 Bootloader. All UEFI BIOS Updates from May 2020 should be patched for this GRUB2 Security Exploit. For Security your UEFI BIOS should be patched to the latest version available from your computer manufacturer before installation of Ubuntu. Secure Boot has also been a standard since 2012 however there was a major Grand Unified Bootloader 2 (GRUB2) Security Exploit in 2020 which compromised the integrity of Secure Boot allowing smarter Ransomware to bypass Secure Boot. Secure Boot is designed to prevent Ransomware from hijacking the Bootloader and compromising the Operating System and Operating System Security features before the Operating System Boots. Secure Boot is a Hardware Security Feature that only allows a Bootloader with a Secure Boot Signature to proceed. The words UEFI and BIOS are however often used interchangeably, to prevent confusion I tend to explicitly use the terms UEFI BIOS and Legacy BIOS.
UEFI has been the standard since 2012 and is an upgrade from the Legacy Basic Input Output System (BIOS).
Ubuntu is open source software meaning you can download, install and use it without any payment.
In the vast majority of cases (unless your device is absolutely bleeding edge) all the required drivers will be inbuilt into the Linux Kernel or obtained via Ubuntu Software Updates. Ubuntu is the Linux distribution that has the most mainstream support from chip manufacturers such as Intel, AMD and NVIDIA and OEMs such as Dell and Lenovo. Installation of Ubuntu 20.04 LTS on a Dell PC with a UEFI BIOS, Secure Boot and Machine Owner Key (MOK)