That UX seems completely unnecessary
> Nope, no button at all on the left
Buttons are nice. You can press them. You can feel them. You can see them.
> reinstall? What is this 1998?
Believe it or not, in 2021, if you've missed the window to do a dist-upgrade before Ubuntu EOLs the release (which is much quicker on non-LTS), there's no easy way to upgrade the distro - the recommended option is to reinstall.
> any script would be in there
What about on Windows? Now you've got different repos for different OSs, which you manage. Any script you write needs to be maintained. The button is universal. No extra effort needed. No maintenance.
You press the button and the monitor shuts off. It's the perfect UX.
I don't know about Windows, nor care about it, I don't use it. I may have many OSes that I do use, but I only have one on my desktop with a monitor plugged in, and it's been the broadly the same for 21 years (debian, then ubuntu)
Yes the buttons on the monitors are rubbish, they're also what there is. My TV which has my monitoring screen and music on is controlled from a remote control, one button to mute, one to turn it off completely. If I didn't have the remote though, the button would be awful (it's on the back, and again is a multi stage menu system to turn off)
Nope, two on my right hand monitor
> The button is guaranteed to be present on all displays by default
Nope, no button at all on the left
> You don't have to customize scripts or settings on your OSs, even if you reinstall
reinstall? What is this 1998? If I did have a new computer then when I restore my essential home directory (~/bin, ~/.vimrc etc) any script would be in there