(Though technically correct) There is some misleading information in section 5.1 Initializing Graphics with KMS. Specifically,
disable KMS by adding nomodeset to the kernel boot command line. To set this permanently, add it to the kernel command line in /boot/grub/menu.lst
That would be correct if one was using legacy GRUB. However, the default bootloader for v12.2 is GRUB2, and so the instructions are not applicable in the default case.
I currently do not have time to report – perhaps someone else can. Perhaps this thread could also adopted as the sticky release notes thread for 12.2 (just a suggestion, do with it what you please)