All computers since the late-Windows 7 era use UEFI.
That's why I hated the extra step that I had to do to not corrupt the UEFI while installing a Linux distro years ago... All this new stuff that just locks you and limits you.
Things are better sometimes but in this case they're not.
HDR means High Dynamic Range. The range of values on an SDR display (Standard Dynamic Range) is 16-235 but the range of values on an HDR display is 0-255, that means that the color "black" on an HDR display is actually black and not "dark-gray".
This is dumbed-down because I don't know the more technical stuff.
Also it has nothing to do to "color saturation" (wrongly called "vividness"). That's a dumb marketing thing since you can do the same using every display in this world.
Heh, yeah 😂
By the way you might wanna consider an alternative such as rEFInd if you're using an UEFI (BIOS but newer and shittier thanks to "improved security", full of limits) or "systemd-bootloader"
Payback
EXACTLY, I feel the same
You should, you're missing out on a lot of fixes, performance improvements (and energy improvement) and filesystem improvements.
Don't listen to who says "it's only security stuff". Better hardware support, everyone?
Upgrade and if you have a problem you can always go back to an older one.
Using X, but X is shitty since ages and Wayland is gaining neat features that I personally don't give a damn to (see: tearing protocol)
Try OnlyOffice