Desmos scientific calculator isn’t open source but it is what I end up using most of the time. It just does float stuff though, it can’t handle something like (10^100+1)-10100

It also doesn’t support nearly as many features as the graphing calculator does, for some reason. But it formats everything very nicely and you can copy and paste as latex

I know some people are suspicious of fedora specifically because of its ties with IBM.

Arch also can absolutely be installed just as quickly as any other distro if you use the archinstall script. I used it recently to install KDE plasma onto a Chromebook from 2017 and everything worked exactly as expected, I haven’t had any issues with stability so far. Can absolutely be done in under half an hour. It ofc doesn’t come with the advantage of understanding exactly how your system is set up, like you would if you did it yourself.

The last time I did that (slightly different setup with xfce) though I broke it somehow and ended up with if freezing often when booting, although I’m still not sure if that was a hardware problem or not, but it doesn’t seem to be happening anymore. I also broke something with the audio jack somehow around then during an update, but chromebooks have weird audio drivers and you need to use this script maintained by (afaik) one person in their spare time. Anyways I would expect a framework laptop to handle it better as it’s newer and more common hardware.

The UI looks the same lol

The layers are the big thing, but its hard to show because the final result looks the same anyways