--exclude works reliable for me. can you give us an example of an --exclude and the file name that tar outputs when adding it?

he died for our sins

Windows, macOS and a ton of other Linux distros do that as well.

First of all, windows and macOS are not for free. They cost extra money, sometimes hidden in the PC cost when pre-installed. When they do a major update, like Win10 to 11, you are at their mercy, if your license can be used to upgrade. Often it can, but sometimes your PC is not "Windows 11 ready" or so and then you get updates for your old system for a few more years until they drop you like a hot potato and throw you to the malware wolves.

Additionally, in Windows the automatic updates are just for the OS itself and some apps from its store. A few apps like Chrome and FF install their own extra update service on top. A lot of other programs check for updates individually or some not at all and often you have to download and run their installer for every update. Idk how it is in macOS tho. Haven't used it in years.

Yes, a ton of other Linux distros also have background unattended-upgrade or similar. However, the people who choose Ubuntu over those are usually looking for a quick solution that almost always just installs without problems. They usyally don't have time or patience for any complications, however small. So they choose the fire-and-forget Linux and additionally have greater chances to find a fix or help in the super rare case it doesn't work, because the bigger user base increases the likelyhood someone else is familiar or has infos regarding that exotic issue.

it's kinda the fire-and-forget of OSes. you just press the update/upgrade button when the unattended-upgrade didn't catch all and it just works for free and forever.

brought to you by the department of redundancy department

maybe koreader has an error and that causes the autologin session to end and you go to login.

another problem could be another login thingy started first and greetd can't use the tty. check inittab

You can always boot from a live medium, chroot into it and fix stuff, e.g. a live USB or CD/DVD. They can be created from Windows.

make sure to make the first backup before you use deduplication. just in case it goes sideways

don't share /boot

it contains stuff from the distro for booting and configuring/installing a boot loader. if both garble their stuff in there it will likely break.

the rich people trying to milk it.

people often think shareholders are doing this, but as you can see here: it's top executives, as mozilla stock is not available.

only fans? 😆

VMs and RDP usually have a client side toggle to capture the keyboard, so all keys go into it, except one control key. it usyally has a client side toolbar button, menu entry and key combo.