Its the same battery tech. The only difference is that daily driving, which is the typical use case, wears them out faster. Probably due to getting the batteries hotter as they run longer, in traffic, etc.

Its still lithium-ion. It will behave the same way regardless of brand or celebrity CEO worship.

>I just told you the actual numbers

From a non-daily driver two seat sports car. Other sources follow the LEAF's numbers. My buddy's Porsche runs fairly well and its 30 years old. That doesn't mean you can have a 30 year old daily driver.