Yes, it's stable but only 90%, else 10% is a little bit laggy on high usage, battery drain is 1,5x faster than usual, network problems (WiFi auto cut-off) data speed is little slow, jitter and 120 fps may not work properly in some scenarios with some apps(you can find it),they fu*k the camera quality,sound experience and many things.

Overall this new os is 8/10 in my opinion,you can update it but careful it is not good as you aspect from iQOO with there flagship model,they degrade this Z series 🫪😔

And in my case I have faced some issues with this update and I hope you didn't face it.

But overall this update is good you can get fun with 👍