Tip:
If you are stuck using Gmail you can still access it with a third party FOSS client like FairEMail. I used to use it when I was at school and it worked perfectly, although you may need specific versions approved by Google so you can use Gmail, but the app still remains open source!
I had a N4000 laptop and it ran... okay. It could do Youtube at 1080p 30 fps but that was about it. On windows it could do up to 4k 30FPS. It is quite a slow CPU but paired with 8 GB of RAM and a decend SSD it's actually not that bad for web browsing and Office use
From https://docs.getaurora.dev/
"System updates are image-based and automatic. Applications are logically separated from the system by using Flatpaks for graphical applications and brew for command line applications. Workloads for development are containerized."
Correct me if I'm wrong, I've never heard of this distro before
That's the root partition, which is the core system partition. It's probably read only because Aurora is an immutable system, that means that it doesn't let you write to the system partition by default
The alpha version was like: R O C K