This is for file sharing, while Syncthing is for file synchronization. While you could use Syncthing for file sharing as well (and I have used it for that before), it’s definitely more complicated to use, and requires a bit more setup.

Next time you want to sail the high seas with Minecraft, try HMCL. Should be less of a hassle.

If you are on Plasma 6, it should be “System Settings” - Keyboard - Advanced, select “Configure keyboard options”, and you’ll find the “Caps Lock behavior” - maybe even two, but one of them have a lot of options as to what you want to do with your Caps Lock key.

Xournal++ supports other architectures. They might not have compiled binaries for other architectures ready to be downloaded on their GitHub release, but it’s packaged on at least postmarketOS (i.e. Alpine Linux) edge (I have it on my “Chromebook”) and Debian Stable.

I have a Samsung Chromebook that also has ARM SoC, 4 GB of soldered RAM and eMMC storage. I installed postmarketOS on it, with desktop KDE Plasma 6, and with 4 GB of ZRAM, it is definitely usable - I could run Xournal++ without much problem. It’s not butter smooth, the scrolling can be stuttery, but it should be enough for light notetaking. Granted, my SoC is older and weaker (RK3399), so your mileage may vary.