Tangentially: anybody have an expectation on longevity of a 2015 machine with decent components vs. one from that era? Are 2015 capacitors still as troublesome?

Tangentially: anybody have an expectation on longevity of a 2015 machine with decent components vs. one from that era? Are 2015 capacitors still as troublesome? I expect having fewer moving parts (as well as there just being fewer separate (visible) parts in general!) probably will help modern machines last longer.