[lebrad]

I'm using Google/Motorola's Nexus 6 with LineageOS, which was released a year before your iPhone 6s and it still gets the latest updates.

Meanwhile, my mid-2011 Mac Mini was cut off from getting macOS updates after High Sierra last year. But because it allows the installation of other operating systems it still can dual-boot the latest Windows 10 and the latest Debian Bullseye just fine.

The only way for any general computing device to last is if it gives the user freedom to control the software that runs on the device. All iPhones suppress this freedom which means game over for longevity.

[jeron]

with checkm8 theoretically we will see greater longevity, against apple's will that is