The further you go, the more specialized it gets. There are people I know doing their PhDs in CS, but it was pretty much just straight math. I’m now an expert in a very specific area of robotics. But it’s only worth it if you have a specific reason to go to grad school, like for a particular career path. If it’s just because you like learning, it’s not worth it. There’s a big opportunity cost.

My older sibling did something similar - getting Ubuntu installed on my very first laptop (a 9" netbook) back in 2008 and replacing windows XP. But be warned: it is a slippery slope. At the time , I just wanted a computer that I could take class notes on (high school), and never wanted to touch programming or the terminal. Now I have a PhD in computer science. I still don’t use Arch though.