Most stable OS for the Prime G2?

[8bit]

Just moving around the menus in the Python app the other day, I was greeted with an error message telling me my Prime had hit a problem and would restart in 3 seconds.

I’m not entirely sure what I did to cause the error. I hadn’t written a program or tried to run one; I was merely browsing the Python app’s menus.

So, given that Python on the Prime is stunted by comparison to the Ti NSpire CX II and 84 CE models - which all allow access to third-party hardware (BBC micro:bit and Tello drones for example) - I’ve decided that Python isn’t an essential app and it isn’t necessary that the app stays on my Prime.

My question then is: Which version of the Prime’s OS is regarded as the most stable for the G2 model and how do I downgrade?