I don't have much PC building experience, but these specs seem sufficient. Only comment is that you might need to use a distro with a new-ish kernel and graphics stack, given the very recent CPU and GPU. So not Debian stable, but Fedora, Ubuntu, or any rolling release distro will be fine.

I have the same problem at my school, but thankfully, the school library has laptops I can borrow with the lockdown browser installed. It isn't ideal, but is there a similar arrangement you could make?

Bit confused about what you're looking for. If you're just SSH/VNC ing into devices on the same local network, then you can simply use their local IP address, which you can find with a command like ip addr and will rarely change, or their hostname if your network is configured properly. There are several GUIs that can remember connection info for you, so you likely will only need it once. It's also quite easy to scan the local network for SSH servers if you have nmap (nmap -p22 <your ip address range, e.g. 192.168.0.1/24>). If you need to connect to a device on your home network from a different network, any VPN software can achieve that. I'm not aware of any remote desktop solution that doesn't require a network connection, but your network doesn't necessarily need to be connected to the Internet.

Are you looking for a GUI that combines all those things?

Yeah, 50% (ram / 2) seems about right.

I'm pretty sure it's supposed to be a mix between Starfleet and Vau N'Akat dress.

Damn Small Linux is a recently resurrected distro made specifically to run on old 32-bit PCs. You probably won't be doing much web browsing or gaming on this device, but you should at least be able to get it to function

First, go to [three dots] -> Preferences -> Runners -> Proton, click the button next to the newest available version of Proton GE (currently ge-proton-9-7), and wait for it to download.

Then, go to your bottle -> Settings -> Runner, set the runner to ge-proton-[version], and wait for Bottles to configure the new runner.

There isn't an alsa command on my system either, so that's no surprise. But we'll need more information to track down the cause, such as:

• What (sound) hardware are you using? (try lspci | grep Audio)
• What happens when you try to play a sound? Does it get stuck loading / at 0:00, show an error, or just play silently?
• Is your system using pulseaudio directly, or via pipewire? (try pactl info)
• What shows up in pavucontrol? (Is it detecting your speaker, or just "dummy output"? Is sound muted, and can you unmute?) Try also alsamixer.
• If you installed non-free firmware, you should have a few lines like deb http://deb.debian.org/debian/ bookworm main contrib non-free-firmware in the file /etc/apt/sources.list. If non-free-firmware is not present, then obviously you have no non-free firmware.

Currently Elisa for my digital music library, and for individual files I prefer to use VLC. I've had good experiences with Strawberry Music Player (and its predecessor, Clementine), too, and am thinking of switching back to it. And when I was a GNOME user, I preferred Lollipop.

I haven't had much experience with Kubuntu, but I do know it has more preinstalled apps, slightly older versions of those apps (where KDE Neon has the latest version of every KDE app the day it releases), but slightly newer non-KDE apps in the non-LTS releases, and is more beholden to Canonical's decisions, such as advertising Ubuntu Pro during upgrades or forcibly installing some programs as snaps. Kubuntu might hold your hand a bit more under certain circumstances, while KDE Neon keeps things simpler, but the difference in ease of use is not that significant, especially if you have any experience with Linux in the last ten years or so.

I've had great experience with QKSMS on GrapheneOS. Thanks for directing me to the fork, I'm switching to it right away.

If you really want to learn Linux, you can use any (actively maintained desktop) distro to learn just about everything. Beginner friendly just means the default software is enough to do everything a typical user wants to do, in a way that is likely to be intuitive even if they recently switched from Windows or OS X. Installing and configuring something like Arch or Gentoo can be a good way to learn more about how Linux works, and some distros like Debian or Arch are better as a starting point for customization than a beginner distro, due to having less pre-configured cruft to work around. But you aren't limited by using Mint, unless you choose to limit yourself.