I’m not sure I would agree for arch if the OP wants low maintenance. I’ve never run it myself, but the way I’ve heard arch described is the further you go without regular updates the more likely you are to have a problem when you do update.

Aren’t most app configurations and settings saved in the user’s .config folder? Again you have to know to look for this, but that should be most of your settings right?

/home/[username]/.config/

I mean, i feel obvious for saying this, but maybe others dont know: If we’re just talking about apps, this is also a 1-liner in most package managers that you can even automate in a shell script

sudo apt-get install firefox vlc thunderbird etc…

if we’re talking more complex environments like a dev environment, mix of python packages, libraries, docker containers, etc obviously thats a lot of attention to manually save all of those details for later and something else should probably be used

I can confirm the xdrip app works on grapheneOS, currently use it on a pixel 8a

Yo, from one type 1 to another, get yourself some xdrip to replace the dexcom app, its miles ahead and more configurable.

https://github.com/NightscoutFoundation/xDrip

And depending on which omnipod you got, and how technical you are, check out AndroidAPS if you want an open source closed-loop solution.

https://androidaps.readthedocs.io/en/latest/

If you got the omnipod dash you can use it directly with AndroidAPS via Bluetooth.

I use both of these with dexcom G6 and an accu-chek Bluetooth insulin pump, and its amazing vs the commercial solutions.