Nice write-up! My install process is slightly different (I suspect everyone who uses Arch ends up having their own little procedure built up over the years that varies slightly, since the flexibility is part of the appeal), so I'll try to focus on substantive feedback rather than feedback on hyper-specific choices that don't matter:
* For something as nebulous as specific cryptographic settings, I think it's worth elaborating on _why_ you pick the settings you did for `cryptosetup`. I'd imagine it's probably very possible for someone to pick a bad set of arguments that either degrade security or don't improve it but make it much slower. I suspect you didn't do this though, so as someone who just uses the defaults that `cryptsetup luksFormat` uses, I'd be super interested to hear how you decided on the options you used!
* It looks like you linked to another post explaining your use of `yay` as a pacman wrapper/AUR helper, but I'd worry that a lot of people this guide would be useful too (i.e. newer people to Arch) would be confused when they try to follow it and suddenly run into the issue where they don't have anything called `yay` installed or know how to install it (since it's not something you can get from the default repos). From what I can tell, the only two AUR packages you reference in this post are `plymouth-git` and `plymouth-theme-arch-breeze-git`. Maybe for the purposes of this post, you could stick with `plymouth` and `breeze-plymouth` in the main repos (and possibly link to the section of your other article where you detail AUR stuff)?
* The stuff about how to configure secure boot is super interesting; I've never found it worth the hassle and just turn it off on all of my machines, so I wasn't aware of all of the tooling available like `sbctl` and `sbsigntools`. A standalone post on how to configure secure boot on Linux would definitely be worthwhile!
* I love the section on the specific packages for each GPU combination. This is definitely something where a lot of people will benefit from a concise list rather than having to comb through the details in the wiki (which are useful when you need them! but often you just want the packages to install)
* For unmounting all of the stuff post-install, you can use `umount -a /mnt` to recursively unmount all of the nested mounts. Super small change, but it's nice not to have to type all of it!
* For something as nebulous as specific cryptographic settings, I think it's worth elaborating on _why_ you pick the settings you did for `cryptosetup`. I'd imagine it's probably very possible for someone to pick a bad set of arguments that either degrade security or don't improve it but make it much slower. I suspect you didn't do this though, so as someone who just uses the defaults that `cryptsetup luksFormat` uses, I'd be super interested to hear how you decided on the options you used!
* It looks like you linked to another post explaining your use of `yay` as a pacman wrapper/AUR helper, but I'd worry that a lot of people this guide would be useful too (i.e. newer people to Arch) would be confused when they try to follow it and suddenly run into the issue where they don't have anything called `yay` installed or know how to install it (since it's not something you can get from the default repos). From what I can tell, the only two AUR packages you reference in this post are `plymouth-git` and `plymouth-theme-arch-breeze-git`. Maybe for the purposes of this post, you could stick with `plymouth` and `breeze-plymouth` in the main repos (and possibly link to the section of your other article where you detail AUR stuff)?
* The stuff about how to configure secure boot is super interesting; I've never found it worth the hassle and just turn it off on all of my machines, so I wasn't aware of all of the tooling available like `sbctl` and `sbsigntools`. A standalone post on how to configure secure boot on Linux would definitely be worthwhile!
* I love the section on the specific packages for each GPU combination. This is definitely something where a lot of people will benefit from a concise list rather than having to comb through the details in the wiki (which are useful when you need them! but often you just want the packages to install)
* For unmounting all of the stuff post-install, you can use `umount -a /mnt` to recursively unmount all of the nested mounts. Super small change, but it's nice not to have to type all of it!