> Depends on how "cycle" is defined - I'm sure they can finagle it so "any charge added to the battery" counts as a cycle.

The definition is pretty well established, and Apple themselves have for years used it consistently.

https://www.apple.com/batteries/why-lithium-ion/

> You complete one charge cycle when you’ve used (discharged) an amount that represents 100% of your battery’s capacity* — but not necessarily all from one charge. For instance, you might use 75% of your battery’s capacity one day, then recharge it fully overnight. If you use 25% the next day, you will have discharged a total of 100%, and the two days will add up to one charge cycle. It could take several days to complete a cycle.