Although these are great mechanical keyboards, I don’t think they are ideal for portability. The Keychron one you linked is 0.7Kg (1.6lbs) which is quite a lot if you want to carry it around. I have a Keychron TKL and it’s really heavy with the aluminium frame.

Yes! I’m also playing Disco Elysium right now and it’s amazing.

Or Logseq is a great Obsidian alternative with no account needed and apps for Linux and Android. You can sync it with Syncthing.

Rain has a really good design and Open-Meteo API.

+1 from me. Fedora is a nice middle ground - stable, polished, yet adopting new things fast.