Mate #7 looks fine, but with 2. it seems there is a pattern being established, that has to do with your new rig.
I am not familiar with the LG Gram, it is new to me. Does it have a company BIOS setup utility (such as Dell have) or a regular brand name such as Insyde, &c?
I'll look into #8.
On #9, the PK/KEK stuff is not usually set unless you choose to set it up with Administration keys.
TJ (
@TechnoJunky ) or others, do you know more about that than I?
On your Distro choices generally - I like Neptune have it on my other rig, have to upgrade, but I am following a plan for that rig so won't get ahead of myself (has 50 partitions, treat with care!)
Netrunner - did you get the new Debian-based one? They also have an Arch flavour, I have both but yet to get the new (likewise with the plan).
The original Netrunner folded a few years ago, some of the blokes who were involved started up Maui, which was Debian-based and with KDE you would like that - gobsmackingly gorgeous wallpapers as well. It generated at least 2 editions Aurora and I forget the other.
Then Netrunner arose again like the phoenix out of the ashes.
I'll look around, but you know the drill by now, with the timezones - if someone else comes along with good advice, go for it and Wizard will play catch up

. TJ uses Neon as you can see from his siggy.
I tried to install it over top Tina but it doesn't work as it did in the past)
Doesn't surprise me, since Clem ditched it after 18.3 but I'll note that in my Knowledge Base, ta for sharing.
Avagudweegend
Wiz