I’m loathe to change mine because CM is working so well.
Took mine off charge at about 6:30 AM, now at 11:43 I still have 99% battery remaining and I have used it (i.e. screen on) for at least 10 mins or so. Whereas on OxygenOS there have been a few reports of poor battery life.
The one issue I’ve had with CM that is pushing me towards trying oxygen is that occasional the lock screen stops accepting touches, so I have to powercycle the phone. It’s still alive, it responds to the power and volume, just not the touchpad.