If you keep your Pixel plugged in for a few days, it will give you an option to limit charging to 80% (or maybe just turns it on on its own, not sure about that). There’s no other way to activate it currently, but that should change soon (the Adaptive Charging option will have three options instead of just on/off).
Is this the Adaptive Charging feature? That’s the only thing I see in my Pixel 5a.
If you keep your Pixel plugged in for a few days, it will give you an option to limit charging to 80% (or maybe just turns it on on its own, not sure about that). There’s no other way to activate it currently, but that should change soon (the Adaptive Charging option will have three options instead of just on/off).