If that's your definition of a lifespan, "max 2 years" is absolutely not true. Android has two types of support: new major releases and security patches.
An average Android usually supports new major Android releases for 2 years, but security patches usually go longer. Not as long as an iPhone, but more like 3-5 years.
Nexus 5X & Nexus 6P (released September 2015) - last update January 2019 [1] ~ 2.25 years Pixel & Pixel XL (released October 2016) - 2019 (can't find a good reference) ~ 3 years Pixel 2 (released October 2017) - December 2020 [2] ~ 3.3 years
[1]: https://9to5google.com/2018/11/07/nexus-6p-and-5x-final-guar... [2]: https://www.androidpolice.com/2020/10/05/pixel-2-and-2-xl-re...
My conclusion: an iPhone outlives (at least) 2+/3+ android phones
Pixels starting from 6 -> 5 years.
Recent Samsungs -> 4 years.
Fairphone 2 (Dec 2015) -> lost support last month.
Things have improved since Nexus 5X, and even that one had a year longer support than your "max 2 years". I'm not saying it's better than an iPhone, I'm saying make a fair comparison.
Pixel 6 came out last year, the 5 year promise is still just a promise.
Samsung's 4 years isn't 4 years of major Android version updates. IIRC it was 2 years of Android updates + 2 years of security patches.
We'll see in 6 years whether the Nexus 6 can get the latest Android version. I'm pretty damn sure my iPhone 14 will still get updates in 2028.
A lot of people buy cheap $no-brand phones that probably don’t get (any) updates.