Can’t say I really trust that stuff like “charge only when green energy is available”. It’s a nice idea but whenever I’ve used Android devices my expectation was that sometimes I plug in my device at night but it doesn’t really charge and I am not going to pay top dollar and deal with life in a walled garden to have that experience.

Maybe you can do an 80% charge limit on Android the same way I do on my iPad 10?¹ My charger is plugged into a smart plug, and I have an automation written using Apple Shortcuts that turns that smart plug off via Matter whenever the iPad's charge rises above 80%.

I don't know much about Android but assume there must be some way to do similar automations (because I've never seen in any of the Android vs iPhone arguments someone say go with iPhone because of superior automation support).

I recommend going with Matter for the smart plug because if you use the manufacturer's app to control it those often require that you be logged in. The problem with that (beyond any annoyance you might have at needing to make an account to use your device) is that the login might occasionally expire, then your automation breaks.

¹I can't use Apple's charge limit setting because for some reason I can't even guess at when they finally added it to iPadOS they only added it iPads newer than my iPad 10.

I have latest Android on the Pixel 8. I just checked and found it under Settings > Battery > Battery Health

It specifically has an option for 80% (const) or an "Adaptive Charge" predictive algorithm that charges to 80% and then only fully charges to 100% right before you typically unplug it from the charger.