I mean, it is something surprisingly absent from most installers
You apparently haven't tried Ubuntu in 20 years? Canonical has had a very clean Windows-ish experience forever, though even back in the day, Suse always had a pretty decent one as well.
Ubuntu is still just one series of distros
It is also a lie as the installer doesnt know any percentages.
But afaik Debian installer, Calamares, Fedora Anaconda and more all have loading bars
I mean, it is something surprisingly absent from most installers
You apparently haven't tried Ubuntu in 20 years? Canonical has had a very clean Windows-ish experience forever, though even back in the day, Suse always had a pretty decent one as well.
Ubuntu is still just one series of distros
It is also a lie as the installer doesnt know any percentages.
But afaik Debian installer, Calamares, Fedora Anaconda and more all have loading bars