Yes, for now someone has to be logged in and have the server running

To maybe prevent a catastrophe: The system is not able to restore virtual desktop assignments yet, it only starts the apps you had open before.

Just click the button in the sddm settings page

That’s just a law of computers, the default arrangement of monitors must always be wrong.

You can just sync your Plasma settings to SDDM though, and it’ll use the same output settings as your session

Fedora just has

polkit.addRule(function(action, subject) {
    if ((action.id == "org.freedesktop.packagekit.package-install" ||
         action.id == "org.freedesktop.packagekit.package-remove") &&
        subject.active == true && subject.local == true &&
        subject.isInGroup("wheel")) {
            return polkit.Result.YES;
    }
});

in /usr/share/polkit-1/rules.d/org.freedesktop.packagekit.rules. If you put the same file in there, it should work.

Yes, and many distros have a polkit rule set up to allow installing or updating without a password. You can likely just copy it from Fedora or sth

Just use Wayland, then you don’t have to care about this

Setting the speed to the max does turn them off

The only effects relevant for performance are blur and background contrast. Turn those off if you feel the system is slow, maybe increase the animation speed and you’re done

You can probably implement it in the script itself, but there’s no external functionality to do it

Almost every output setting “may seriously break things” in my experience. Display drivers are sadly quite fragile

Changing the output config file should work, as long as KWin isn’t running while you make the change (in which case the change will just be overridden)

Edit: Also, please make a bug report about this for KWin. It’s probably not a KWin issue, but we can usually figure out where it’s coming from

Many monitors allow you to turn off HDR, they just claim they don’t support it to the computer when you do that

I was especially surprised to find that Gnome would turn the screen around correctly by itself. With KDE Plasma I had to set the correct screen orientation myself. And unfortunately Plasma also did not come with any on screen keyboard so it was effectively unusable.

You just need to use a distro that follows our upstream defaults - namely Wayland, and having the virtual keyboard Maliit installed by default - then everything will work out of the box with KDE Plasma too.

I’m one of the KWin maintainers, I can tell you with absolute certainty that this hasn’t changed. Maybe you were on Xorg then?

No, they were always global. Scrolling on the desktop to change virtual desktops was disabled by default, but nothing changed about the three finger gestures

It was already a pain that one could not personalize these actions, but at least the defaults were ok for me (3 finger up/down for desktop grid/present windows). And I could use fusuma for more.
The new defaults hijacks all 3-finger gestures to scroll one virtual desktop up/down left/right which I find useless.

You don’t remember the gestures on Plasma 5 correctly. They already used both 3 and 4 finger gestures like they do now, and 3 finger gestures were for virtual desktop switching too.

There is no gesture, only horizontal scroll. The app has to scroll when there is content to scroll, and interpret the horizontal scroll as a gesture thing when you can’t scroll anymore. Firefox has that implemented, and every app that wants this to work needs to implement it for itself.

That’s something apps have to implement, we unfortunately can’t do it globally

I don’t know tbh, I see neither any MR that removed it, nor the option you’re talking about.