groche

Must be as easy as windows, but in windows the easy way to fix a big problem is install again, un linux you can reinstall or… Fix with commands. Probably in your case you need to write commands because something go wrong with the installation, maybe you did something wrong, or maybe Ubuntu read something in a bad way and make a mistake installing Ubuntu. Is impossible to know if you don’t share the exact error message.

UKIs are good for secureboot/measureboot, because you can sign the uki, and everything inside of it be validated for secureboot. If you really like to have a secure chain without a uki, you need to validate all the boot components. You can do it with grub and gpg signatures, but is more simple to use an uki and a efi bootloader like systemd-boot

But you want to use systemd-boot? Obviously you need to install systems-utils if you want to install systemd-boot, but you can use grub or something else bootloader

You can install gentoo-kernel-bin and everything works fine. About SystemD, you needn’t systemd as init, but you need systemd as udev or other things. Only follow the guide with a non-systemd profile

Nowadays a lot of hardware works very well on Linux, the main approach of this vendors is not the compatibility (has guaranteed but as you say in a thinkpad you have the same compatibility), the approach is about a free software (or mostly free) firmware, and in this case, free and secure implementation for the firmware an all secureboor chain

If snap or flathub repos are in the store, any mainstream application be in. In the other side, if you don’t know what are you doing and install random packages, the most probably is that you’ll broke your system

The normal people doesn’t install software external to the store or configure the system a lot, in IOS you can’t do this things and everyone is fine. For share network in gnome you can do it with a button in the WiFi settings

In my firs time with linux I install ubuntu (maybe 12.04, I dont’t remember, it was gnome 2) in the only PC in my parents home, I delete windows, and we was using it 2 years without knowing what is a terminal and everything went fine, the problems appeard when I was discover the terminal hahahaha

In my opinion the hardest thing in linux is leave to use propietary or exclusive software for windows, the first think you must do is leave to use propietary software in windows, and when you can live without windows exclusive programs, switch to linux. You can start for ubuntu or other linux friendly distribution, doesn’t care, afther the migration you can try other for curiosity without risk

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